Marshmallow Cocoa Puff Brownies Recipe

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The first time I pulled a pan of these Marshmallow Cocoa Puff Brownies from the oven, the aroma alone was enough to draw a crowd. My kitchen, usually a calm space, was suddenly buzzing with anticipation. My kids, their noses practically pressed against the oven door (from a safe distance, of course!), could barely contain their excitement. And honestly, neither could I. The concept was simple: a rich, fudgy brownie base, a gooey layer of melted marshmallows, and a crunchy, chocolatey topping of Cocoa Puffs. But the result? Pure, unadulterated joy in every bite. These aren’t just brownies; they’re an experience. The contrast of textures – the chewy brownie, the stretchy marshmallow, the crisp cereal – is a playground for your palate. They became an instant legend in our household. Birthdays, movie nights, or just a “we need a pick-me-up” Tuesday, these brownies are now the most requested treat. They are surprisingly easy to make, yet they look and taste like something from a gourmet bakery. If you’re looking to elevate your brownie game and create a dessert that will have everyone talking (and begging for the recipe), then you’ve absolutely come to the right place. Prepare for a taste sensation that’s both nostalgic and wonderfully new!

The Ultimate Marshmallow Cocoa Puff Brownies: A Symphony of Chocolate, Goo, and Crunch

Welcome, fellow dessert enthusiasts, to a recipe that promises to redefine your understanding of the humble brownie. We’re not just making brownies today; we’re crafting an experience – a delightful concoction that layers rich, fudgy chocolate with a cloud of gooey marshmallow and a crown of crispy, chocolatey Cocoa Puffs. This isn’t just a treat for the kids; it’s a sophisticated (yet wonderfully playful) dessert that will tantalize adult taste buds too.

Why this combination, you ask? It’s all about the harmony of textures and flavors. The deep, intense chocolate of the brownie provides a solid, satisfying foundation. The melted marshmallows introduce a sweet, pillowy softness that stretches and pulls in the most delightful way. And the Cocoa Puffs? They bring the crunch, a nostalgic chocolatey hit, and a playful finish that makes these brownies utterly irresistible.

In this comprehensive guide, we’ll walk you through every step, ensuring your Marshmallow Cocoa Puff Brownies turn out perfectly every single time. We’ll delve into the nuances of ingredient selection, the secrets to a perfectly fudgy brownie base, and tips for achieving that glorious marshmallow pull. So, tie on your aprons, preheat your ovens, and let’s embark on this delicious baking adventure!

Complete Recipe: Marshmallow Cocoa Puff Brownies

This recipe is designed for a 9×13 inch baking pan, yielding a generous batch perfect for sharing (or not, we won’t judge!).

Ingredients:

For the Fudgy Brownie Base:

  • 1 cup (226g or 2 sticks) unsalted butter, melted
  • 1 ¾ cups (350g) granulated sugar
  • 4 large eggs, at room temperature
  • 1 tablespoon pure vanilla extract
  • ¾ cup (75g) unsweetened cocoa powder, sifted (Dutch-process recommended for deeper flavor)
  • 1 cup (120g) all-purpose flour, sifted
  • ½ teaspoon salt
  • ½ teaspoon baking powder (optional, for a slightly less dense brownie)
  • ½ cup (85g) semi-sweet chocolate chips (optional, for extra chocolate pockets)

For the Marshmallow Layer:

  • 1 bag (10 ounces / approx. 280g) mini marshmallows (about 5-6 cups)

For the Cocoa Puff Topping:

  • 3-4 cups Cocoa Puffs cereal (or similar chocolate puffed rice cereal)
  • 2 tablespoons unsalted butter, melted (optional, helps cereal adhere and adds richness)

Why these ingredients?

  • Unsalted Butter: Gives us control over the salt content. Melting it ensures a fudgier texture.
  • Granulated Sugar: Provides sweetness and contributes to the brownie’s crust and chewy texture.
  • Large Eggs: Act as binders, add richness, and contribute to the structure. Room temperature eggs incorporate better.
  • Vanilla Extract: Enhances all the other flavors, especially the chocolate. Pure vanilla is key.
  • Unsweetened Cocoa Powder: This is where the deep chocolate flavor comes from. Dutch-process cocoa is less acidic and gives a darker color and richer flavor, but natural cocoa powder will also work. Sifting prevents lumps.
  • All-Purpose Flour: Provides structure. The relatively low amount compared to fat and sugar is key to a fudgy brownie. Sifting makes it lighter.
  • Salt: Balances the sweetness and enhances the chocolate flavor. Don’t skip it!
  • Baking Powder: This is optional. If you prefer an ultra-dense, super fudgy brownie, omit it. If you like a tiny bit of lift without being cakey, include it.
  • Chocolate Chips: Optional, but who says no to more chocolate? They create pockets of melted chocolate goodness.
  • Mini Marshmallows: These melt more evenly and quickly than large marshmallows. Their sweetness and gooey texture are iconic.
  • Cocoa Puffs Cereal: The star topping! Provides a delightful crunch and an extra layer of chocolate flavor.
  • Melted Butter for Topping: This is optional but recommended. Tossing the cereal in a little melted butter helps it stick together slightly, makes it a bit richer, and can prevent it from becoming too dry in the oven’s heat.

Step-by-Step Instructions: Crafting Your Masterpiece

Follow these instructions carefully for brownie perfection. Precision in baking often leads to the best results, especially when aiming for that perfect fudgy texture.

1. Preparation is Key: Preheat and Pan Prep
* Preheat your oven to 350°F (175°C). Position an oven rack in the middle of the oven.
* Grease a 9×13 inch baking pan thoroughly with butter or non-stick cooking spray.
* For easy removal and cleanup, line the pan with parchment paper, leaving an overhang on two opposite sides to act as “handles.” Grease the parchment paper as well. This step is highly recommended, especially with the sticky marshmallow layer.

2. Mix the Fudgy Brownie Batter:
* In a large mixing bowl, combine the melted butter and granulated sugar. Whisk them together until well combined. Don’t worry about creaming them like for a cake; we want fudgy, not airy.
* Add the room temperature eggs one at a time, whisking well after each addition until the mixture is glossy and smooth.
* Stir in the pure vanilla extract.
* In a separate medium bowl, sift together the unsweetened cocoa powder, all-purpose flour, salt, and baking powder (if using). Sifting prevents lumps and ensures even distribution.
* Gradually add the dry ingredients to the wet ingredients. Mix with a wooden spoon or spatula until just combined. It’s crucial not to overmix at this stage. Overmixing develops gluten in the flour, which can lead to tough, cakey brownies instead of fudgy ones. A few streaks of flour remaining are okay.
* If using, gently fold in the semi-sweet chocolate chips.

3. The First Bake: Building the Foundation
* Pour the brownie batter into your prepared 9×13 inch baking pan. Spread it evenly using a spatula, ensuring it reaches all corners.
* Bake in the preheated oven for 22-28 minutes. The brownies should be mostly set, and a toothpick inserted into the center should come out with moist crumbs attached, but not wet batter. The edges will look set and slightly pulled away from the sides of the pan. Don’t overbake; remember, they’re going back into the oven.

4. The Marshmallow Cloud: Adding the Gooey Layer
* Once the initial baking time is complete, carefully remove the pan from the oven.
* Immediately and evenly sprinkle the mini marshmallows over the entire surface of the hot brownies. Try to create a consistent layer for even melting.
* Return the pan to the oven for another 2-5 minutes. Keep a very close eye on them! You want the marshmallows to become puffy and just begin to melt and turn a very light golden brown in spots. Don’t let them burn or caramelize too much, as they can become hard.

5. The Grand Finale: The Cocoa Puff Crown
* While the marshmallows are melting in those final minutes, if you’re using the optional butter for the topping, quickly melt the 2 tablespoons of butter. In a medium bowl, toss the Cocoa Puffs cereal with the melted butter until lightly coated. This step is quick, so have your cereal ready.
* Carefully remove the pan from the oven again. The marshmallows should be soft and gooey.
* Immediately sprinkle the (buttered or plain) Cocoa Puffs cereal evenly over the melted marshmallow layer. Gently press them down very slightly into the marshmallows with the back of a spoon or your clean hands to help them adhere. Be careful, as the marshmallows will be extremely hot.

6. The Final (Optional) Kiss of Heat & The Crucial Cool Down:
* You have two options here:
* Option A (Slightly Crispier Cereal): Return the pan to the oven for just 1-2 minutes more. This helps the cereal “set” into the marshmallows and can give it a tiny bit more crispness. Watch like a hawk to prevent the cereal or marshmallows from burning.
* Option B (Softer Set): Skip returning to the oven. The residual heat from the brownies and marshmallows will be enough to help the cereal adhere as it cools.
* Once done, remove the pan from the oven and place it on a wire cooling rack.
* THIS IS THE MOST IMPORTANT STEP FOR SUCCESS: Allow the brownies to cool COMPLETELY in the pan before attempting to cut them. This will take at least 2-3 hours at room temperature, or you can expedite it by placing them in the refrigerator after they’ve cooled for about an hour at room temperature. If you try to cut them while warm, the marshmallow will be a sticky, unmanageable mess. Patience here is rewarded with clean, beautiful squares.

7. Cutting and Serving:
* Once completely cooled (and preferably chilled if you want very neat squares), use the parchment paper overhangs to lift the entire slab of brownies out of the pan and onto a cutting board.
* Use a large, sharp knife to cut them into squares. For the cleanest cuts, wipe the knife blade clean with a damp paper towel between cuts, or lightly grease the knife.

Nutrition Facts (Estimated)

  • Servings: This recipe yields approximately 20-24 medium-sized brownies, depending on how you cut them. For estimation, we’ll use 24 servings.
  • Calories per serving (approximate): Around 280-350 calories.

Disclaimer: Nutritional information is an estimate and can vary based on the specific brands of ingredients used, exact quantities, and final serving size. These brownies are an indulgent treat, best enjoyed in moderation as part of a balanced lifestyle.

Preparation Time

Understanding the time commitment helps plan your baking adventure:

  • Active Preparation Time: 20-25 minutes (mixing batter, preparing pan, assembling layers).
  • Baking Time (Total): Approximately 30-35 minutes (initial brownie bake + marshmallow melting + optional final cereal crisping).
  • Cooling Time: CRUCIAL! Minimum 2-3 hours at room temperature, or 1 hour at room temperature followed by 1-2 hours in the refrigerator for best results and easiest cutting. Impatience here is the enemy of a beautifully cut brownie!

Total Time (from start to ready-to-eat): Approximately 3 hours 50 minutes to 4 hours, largely due to the essential cooling period.

How to Serve Your Marshmallow Cocoa Puff Brownies

These brownies are spectacular on their own, but here are a few ways to elevate the serving experience or tailor them to different occasions:

  • The Classic:
    • Serve them cut into neat squares at room temperature. The textural contrast is at its peak this way.
  • Warm and Gooey Delight:
    • Gently warm an individual brownie in the microwave for 10-15 seconds. This makes the marshmallow extra gooey and the brownie even more decadent.
    • Be cautious not to overheat, as the marshmallow can become very hot.
  • À La Mode Extravaganza:
    • Serve a slightly warmed brownie with a generous scoop of vanilla bean ice cream. The contrast of warm brownie and cold ice cream is heavenly.
    • A drizzle of chocolate or caramel sauce over the ice cream would not be unwelcome!
  • With a Glass of Milk:
    • The quintessential pairing for any chocolate treat. Cold milk perfectly complements the richness of the brownies.
  • Coffee Companion:
    • Enjoy a square with your morning coffee or afternoon espresso for an indulgent pick-me-up.
  • Party Platter Star:
    • Arrange them on a dessert platter alongside other treats like cookies, fruit, or mini cupcakes for a party. Their unique appearance makes them a standout.
  • Crumble Topping:
    • Roughly chop or crumble a brownie over a bowl of plain yogurt or ice cream for a deconstructed dessert experience.
  • Gift-Giving:
    • Once cooled and cut, package them in a decorative box or cellophane bag tied with a ribbon for a delightful homemade gift.

Additional Tips for Brownie Perfection (5 Tips)

Unlock the full potential of your Marshmallow Cocoa Puff Brownies with these expert tips:

  1. Don’t Overbake the Brownie Base: This is the cardinal rule for fudgy brownies. Overbaking dries them out and leads to a cakey texture. Aim for a toothpick to come out with moist, fudgy crumbs, not completely clean (which indicates overbaking for brownies) and certainly not wet batter (which means underbaking). Remember they will cook a little more when the marshmallows are added. If in doubt, err slightly on the side of underbaking for the initial bake.
  2. Quality of Cocoa Matters: The primary chocolate flavor in the brownie base comes from the cocoa powder. Using a high-quality Dutch-process cocoa powder will yield a darker, richer, and more intensely chocolatey brownie with a smoother flavor. While natural cocoa powder works, Dutch-process often gives a superior result in recipes like this where a deep chocolate flavor is desired.
  3. The Magic of Room Temperature Eggs: Using eggs that are at room temperature allows them to incorporate more fully into the batter. Cold eggs can cause the melted butter to re-solidify slightly, leading to a less homogenous mixture and potentially affecting the final texture. To quickly bring eggs to room temperature, place them in a bowl of warm (not hot) water for 5-10 minutes.
  4. Patience with Marshmallows – Don’t Over-Melt! When you return the brownies to the oven with the marshmallow layer, watch them like a hawk. You want them to puff up and become soft and melty, perhaps with a few spots just starting to turn golden. If they melt too much or start to caramelize significantly, they can become overly sticky, hard once cooled, or even burn. 2-5 minutes is usually sufficient.
  5. The Cooling Imperative: We’ve mentioned it before, but it bears repeating because it’s so critical for this specific recipe. The melted marshmallow layer needs to cool and set completely before you attempt to cut the brownies. Trying to cut them warm will result in a sticky, stringy mess, and the layers may not hold their shape. Chilling them in the refrigerator for an hour or two after they’ve mostly cooled at room temperature makes cutting significantly easier and yields much cleaner squares. This patience will pay off in the presentation and ease of serving.

FAQ Section: Your Marshmallow Cocoa Puff Brownie Queries Answered

Here are answers to some frequently asked questions that might arise as you prepare this delightful treat:

Q1: Can I use large marshmallows instead of mini marshmallows?

  • A: Yes, you absolutely can, but it requires a little extra effort. Mini marshmallows are preferred because they melt more quickly and evenly due to their smaller size and greater surface area. If you only have large marshmallows, you can snip them into smaller pieces (kitchen shears dipped in a little cornstarch or powdered sugar can help prevent sticking) before scattering them over the brownies. If you use them whole, they may take a bit longer to melt and might not create as uniform a layer. Just ensure they are fully melted and puffy before adding the cereal.

Q2: How should I store these brownies, and how long will they last?

  • A: Store your Marshmallow Cocoa Puff Brownies in an airtight container at room temperature for up to 3-4 days. If your kitchen is very warm or humid, you might prefer to store them in the refrigerator, which can extend their freshness to about 5-7 days. Note that refrigeration can make the brownies firmer and the cereal topping slightly less crisp over time. If refrigerated, you might want to let them sit at room temperature for 15-20 minutes before serving, or briefly microwave a serving. They are unlikely to last long due to deliciousness!

Q3: Can I make these brownies gluten-free?

  • A: Yes, with a couple of adjustments. For the brownie base, substitute the all-purpose flour with a good-quality measure-for-measure gluten-free flour blend (one that contains xanthan gum or add it if your blend doesn’t). The key challenge will be the Cocoa Puffs. Many mainstream chocolate puffed rice cereals contain gluten (often from malt). You’ll need to find a certified gluten-free chocolate puffed rice cereal. Always double-check labels of all your ingredients (like cocoa powder, chocolate chips, and vanilla) to ensure they are gluten-free if catering to a strict GF diet.

Q4: Can I use a different type of cereal for the topping?

  • A: Absolutely! While Cocoa Puffs provide a specific chocolatey crunch that complements the brownies perfectly, feel free to experiment. Other cereals that could work well include:
    • Golden Grahams: For a honey-graham cracker flavor and crunch.
    • Cinnamon Toast Crunch: For a cinnamony-sugar twist.
    • Rice Krispies or Chocolate Rice Krispies: For a lighter, crispier texture.
    • Crushed Oreos or other chocolate cookies: For an even more intense chocolate experience.
      The key is to choose a cereal that offers a pleasant crunch and a flavor profile that you think will pair well with chocolate and marshmallow.

Q5: My brownies turned out more cakey than fudgy. What went wrong?

  • A: Several factors can lead to cakey brownies instead of the desired fudgy texture:
    • Overmixing the batter: Once you add the flour, mix only until the ingredients are just combined. Overmixing develops gluten, which results in a tougher, more cake-like texture.
    • Too much flour: Ensure you’re measuring your flour correctly. Scooping flour directly from the bag with a measuring cup can pack it in, resulting in too much flour. Ideally, spoon the flour into your measuring cup and then level it off.
    • Type/Amount of Fat: Fudgy brownies typically have a higher fat-to-flour ratio. This recipe is designed for fudginess with one cup of butter. Reducing fat can make them cakier.
    • Too many eggs (or egg size): While eggs are crucial, an excessive amount can also lead to a cakier result. Stick to large eggs as specified.
    • Overbaking: Baking for too long will dry out the brownies, making them more cake-like and less moist and fudgy.
    • Baking powder: This recipe includes a small, optional amount. If you want ultra-fudgy, consider omitting it altogether.

Enjoy baking and, more importantly, enjoy devouring these incredible Marshmallow Cocoa Puff Brownies! They are a testament to how simple ingredients, combined thoughtfully, can create something truly magical. Happy Baking!

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Marshmallow Cocoa Puff Brownies Recipe


  • Author: David

Ingredients

Scale

For the Fudgy Brownie Base:

  • 1 cup (226g or 2 sticks) unsalted butter, melted
  • 1 ¾ cups (350g) granulated sugar
  • 4 large eggs, at room temperature
  • 1 tablespoon pure vanilla extract
  • ¾ cup (75g) unsweetened cocoa powder, sifted (Dutch-process recommended for deeper flavor)
  • 1 cup (120g) all-purpose flour, sifted
  • ½ teaspoon salt
  • ½ teaspoon baking powder (optional, for a slightly less dense brownie)
  • ½ cup (85g) semi-sweet chocolate chips (optional, for extra chocolate pockets)

For the Marshmallow Layer:

  • 1 bag (10 ounces / approx. 280g) mini marshmallows (about 56 cups)

For the Cocoa Puff Topping:

  • 34 cups Cocoa Puffs cereal (or similar chocolate puffed rice cereal)
  • 2 tablespoons unsalted butter, melted (optional, helps cereal adhere and adds richness)

Instructions

1. Preparation is Key: Preheat and Pan Prep
* Preheat your oven to 350°F (175°C). Position an oven rack in the middle of the oven.
* Grease a 9×13 inch baking pan thoroughly with butter or non-stick cooking spray.
* For easy removal and cleanup, line the pan with parchment paper, leaving an overhang on two opposite sides to act as “handles.” Grease the parchment paper as well. This step is highly recommended, especially with the sticky marshmallow layer.

2. Mix the Fudgy Brownie Batter:
* In a large mixing bowl, combine the melted butter and granulated sugar. Whisk them together until well combined. Don’t worry about creaming them like for a cake; we want fudgy, not airy.
* Add the room temperature eggs one at a time, whisking well after each addition until the mixture is glossy and smooth.
* Stir in the pure vanilla extract.
* In a separate medium bowl, sift together the unsweetened cocoa powder, all-purpose flour, salt, and baking powder (if using). Sifting prevents lumps and ensures even distribution.
* Gradually add the dry ingredients to the wet ingredients. Mix with a wooden spoon or spatula until just combined. It’s crucial not to overmix at this stage. Overmixing develops gluten in the flour, which can lead to tough, cakey brownies instead of fudgy ones. A few streaks of flour remaining are okay.
* If using, gently fold in the semi-sweet chocolate chips.

3. The First Bake: Building the Foundation
* Pour the brownie batter into your prepared 9×13 inch baking pan. Spread it evenly using a spatula, ensuring it reaches all corners.
* Bake in the preheated oven for 22-28 minutes. The brownies should be mostly set, and a toothpick inserted into the center should come out with moist crumbs attached, but not wet batter. The edges will look set and slightly pulled away from the sides of the pan. Don’t overbake; remember, they’re going back into the oven.

4. The Marshmallow Cloud: Adding the Gooey Layer
* Once the initial baking time is complete, carefully remove the pan from the oven.
* Immediately and evenly sprinkle the mini marshmallows over the entire surface of the hot brownies. Try to create a consistent layer for even melting.
* Return the pan to the oven for another 2-5 minutes. Keep a very close eye on them! You want the marshmallows to become puffy and just begin to melt and turn a very light golden brown in spots. Don’t let them burn or caramelize too much, as they can become hard.

5. The Grand Finale: The Cocoa Puff Crown
* While the marshmallows are melting in those final minutes, if you’re using the optional butter for the topping, quickly melt the 2 tablespoons of butter. In a medium bowl, toss the Cocoa Puffs cereal with the melted butter until lightly coated. This step is quick, so have your cereal ready.
* Carefully remove the pan from the oven again. The marshmallows should be soft and gooey.
* Immediately sprinkle the (buttered or plain) Cocoa Puffs cereal evenly over the melted marshmallow layer. Gently press them down very slightly into the marshmallows with the back of a spoon or your clean hands to help them adhere. Be careful, as the marshmallows will be extremely hot.

6. The Final (Optional) Kiss of Heat & The Crucial Cool Down:
* You have two options here:
* Option A (Slightly Crispier Cereal): Return the pan to the oven for just 1-2 minutes more. This helps the cereal “set” into the marshmallows and can give it a tiny bit more crispness. Watch like a hawk to prevent the cereal or marshmallows from burning.
* Option B (Softer Set): Skip returning to the oven. The residual heat from the brownies and marshmallows will be enough to help the cereal adhere as it cools.
* Once done, remove the pan from the oven and place it on a wire cooling rack.
* THIS IS THE MOST IMPORTANT STEP FOR SUCCESS: Allow the brownies to cool COMPLETELY in the pan before attempting to cut them. This will take at least 2-3 hours at room temperature, or you can expedite it by placing them in the refrigerator after they’ve cooled for about an hour at room temperature. If you try to cut them while warm, the marshmallow will be a sticky, unmanageable mess. Patience here is rewarded with clean, beautiful squares.

7. Cutting and Serving:
* Once completely cooled (and preferably chilled if you want very neat squares), use the parchment paper overhangs to lift the entire slab of brownies out of the pan and onto a cutting board.
* Use a large, sharp knife to cut them into squares. For the cleanest cuts, wipe the knife blade clean with a damp paper towel between cuts, or lightly grease the knife.

Nutrition

  • Serving Size: One Normal Portion
  • Calories: 280-350