Irresistible Chocolate Hazelnut Mousse Pie You’ll Crave Tonight

Elizabeth

Founder of Her Recipe Box

Chocolate Hazelnut Mousse Pie

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There’s something magical about the velvety texture of a perfectly whipped mousse, especially when chocolate and toasted hazelnuts come together in one indulgent pie. One evening, craving a dessert that felt both luxurious and comforting, I experimented until I crafted this Chocolate Hazelnut Mousse Pie—a recipe that’s as simple as it is show-stopping. Whether you’re winding down after a long day or aiming to impress guests with a homemade treat, this pie’s rich, nutty flavor and airy creaminess never fail to delight. Let me share how this easy-to-make dessert became a staple in my kitchen and might just become yours too!

Why choose Chocolate Hazelnut Mousse Pie?

Decadent Flavor: Rich chocolate and toasted hazelnuts blend into a creamy, dreamy mousse that satisfies any sweet craving. Effortless Elegance: This pie looks gourmet but requires simple steps perfect for any home cook. Versatile Dessert: Ideal for special occasions or a cozy night in, it’s sure to impress. Light Yet Satisfying: The airy mousse texture balances indulgence without feeling heavy. Make-Ahead Friendly: Prepare it in advance to save time and enjoy stress-free entertaining.

Chocolate Hazelnut Mousse Pie Ingredients

For the Crust

  • Chocolate cookie crumbs – Use finely crushed cookies for a sturdy, flavorful base.
  • Unsalted butter – Melted to bind the crumbs and add richness to your crust.
  • Sugar – Just a touch to balance the cocoa bitterness in the crust.

For the Mousse Filling

  • Dark chocolate – Choose good-quality chocolate to elevate the deep cocoa flavor in the chocolate hazelnut mousse pie.
  • Heavy cream – Whip until stiff peaks form to create the mousse’s signature light, airy texture.
  • Egg yolks – Provide creaminess and help set the mousse filling perfectly.
  • Sugar – Adds sweetness while enhancing the chocolate’s richness.
  • Toasted hazelnuts – Chop roughly for a delightful nutty crunch and aroma.

For Garnish

  • Whipped cream – Dollop on top for a cloud-like finish that contrasts the dense mousse.
  • Hazelnut pieces or curls – Sprinkle for added texture and a visually inviting touch.

How to Make Chocolate Hazelnut Mousse Pie

For the Crust:

  1. Combine: Mix chocolate cookie crumbs, melted butter, and sugar in a medium bowl until the mixture is evenly moistened and aromatic, with a deep chocolate scent and slightly sandy texture.
  2. Press: Firmly press the crumb mixture into a 9-inch pie pan, creating an even, compact layer along the bottom and sides. Chill in the fridge for 15 minutes to set.

For the Mousse Filling:

  1. Whip: Beat heavy cream until stiff peaks form, about 3–4 minutes at high speed, to achieve a glossy, billowy texture that will give your mousse an airy, cloud-like lift.
  2. Melt: Gently melt dark chocolate and egg yolks together over a warm water bath, stirring constantly until smooth and glossy, ensuring no lumps and a silky texture.
  3. Fold: Gently fold whipped cream into the melted chocolate mixture in three batches, mixing just until streaks disappear. Stir in chopped toasted hazelnuts for added crunch.
  4. Chill: Transfer the pie to the refrigerator and chill for at least 2 hours, allowing the mousse to firm up into a silky, sliceable texture perfect for serving.

For the Garnish:

  1. Top: Pipe or dollop whipped cream over each slice, then sprinkle extra hazelnut pieces or curls for a visually stunning finish.

Optional: Serve with a sprinkle of sea salt for contrast.
Exact quantities are listed in the recipe card below.

Storage Tips for Chocolate Hazelnut Mousse Pie

Fridge: Store any leftover pie covered in plastic wrap or in an airtight container for up to 3 days to keep it fresh and tasty.

Freezer: If you want to enjoy your mousse pie later, wrap individual slices in plastic wrap and foil, then freeze for up to 1 month.

Reheating: There’s no need to reheat this dessert; simply thaw slices in the fridge overnight for a delightful treat when you’re ready to indulge.

Serving Suggestions: Garnish with fresh whipped cream and additional hazelnut pieces just before serving for an extra touch of elegance.

What to Serve with Chocolate Hazelnut Mousse Pie?

Indulging in a slice of this sumptuous pie is just the beginning of your dessert experience.

  • Fresh Berries: Juicy raspberries or strawberries provide a tart contrast, brightening the rich mousse’s flavors while adding a delightful pop of color.

  • Espresso or Strong Coffee: The boldness of a freshly brewed cup enhances the chocolate notes, making each bite feel even more luxurious.

  • Chocolate Sauce: Drizzling a warm chocolate sauce over slices adds a heavenly layer of sweetness, perfect for chocolate lovers wanting an extra treat.

  • Vanilla Ice Cream: The creamy vanilla balances the rich mousse and offers a lovely temperature contrast that feels indulgent.

  • Hazelnut Liqueur: A splash of this liqueur brings out the hazelnut flavor and adds a sophisticated touch, ideal for dinner parties.

  • Mint Leaves: A few fresh mint leaves not only add a hint of refreshing flavor but also make for an elegant garnish, elevating your presentation.

These pairings can transform your dessert into a complete experience, each element enhancing the delicious decadence of your Chocolate Hazelnut Mousse Pie.

Make Ahead Options

These Chocolate Hazelnut Mousse Pie ingredients are perfect for meal prep enthusiasts! You can prepare the crust up to 24 hours in advance by mixing the chocolate cookie crumbs, melted butter, and sugar, then pressing it into the pie pan and storing it in the refrigerator. The mousse filling can also be made up to 3 days ahead; simply whip the cream, melt the chocolate with the egg yolks, and fold in the hazelnuts. Once prepared, keep the mousse covered in the fridge to maintain its airy quality. When you’re ready to serve, just fill the chilled crust with the mousse and adorn it with whipped cream and chopped hazelnuts for a dazzling dessert that’s just as delicious!

Expert Tips for Chocolate Hazelnut Mousse Pie

  • Use quality chocolate: Opt for high-quality dark chocolate to deepen the flavor and ensure a smooth, rich mousse texture.
  • Whip cream carefully: Beat heavy cream just until stiff peaks form; over-whipping can cause graininess and deflate your mousse.
  • Fold gently: When combining whipped cream with chocolate, fold slowly to maintain the airy texture crucial for a light mousse.
  • Toast hazelnuts evenly: Toast nuts until golden and fragrant, but watch closely to avoid burning, which can add bitterness.
  • Chill thoroughly: Allow the pie to chill for at least two hours to let the mousse set properly and slice cleanly.
  • Avoid rushing: Take your time at each step to build layers of flavor and texture for this delicious chocolate hazelnut mousse pie.

Variations & Substitutions for Chocolate Hazelnut Mousse Pie

Feel free to customize this delightful pie with these exciting twists that enhance both flavor and texture!

  • Nut-Free: Substitute toasted hazelnuts with crushed almonds or sunflower seeds for a nut-free alternative without sacrificing crunch.
    Enjoy the creamy chocolate flavors while keeping allergy concerns at bay, creating a dessert for everyone to savor.

  • Vegan Delight: Use coconut cream in place of heavy cream and replace egg yolks with silken tofu for a rich and creamy treat.
    This vegan version still delivers the lusciousness you love, making chocolate lovers rejoice regardless of dietary preferences.

  • Gluten-Free: Replace chocolate cookie crumbs with gluten-free cookies or almond flour for a delectable gluten-free crust option.
    This swap ensures that those avoiding gluten can indulge in the sweet comforts of this pie without a hitch.

  • Flavor Infusion: Add a splash of espresso or strong coffee to the melted chocolate mixture for a mocha twist.
    The added depth of flavor complements the chocolate beautifully while giving you that perfect caffeine kick, too!

  • Fruit Sensation: Layer in a thin slice of ripe banana or raspberry puree beneath the mousse for a fresh fruit contrast.
    The tartness of the berries or sweetness of the banana cuts through the richness, introducing a refreshing element to each bite.

  • Spicy Heat: For a daring kick, incorporate a pinch of cayenne pepper or a dash of chili powder into the chocolate mixture.
    This unexpected addition creates a warm backdrop to the chocolate, igniting your taste buds and leaving a memorable impression.

  • Caramel Drizzle: Swirl in some homemade or store-bought caramel sauce atop the chilled mousse before serving for an extra layer of indulgence.
    The sweet, buttery notes enhance the richness and add a delightful sticky texture that pairs perfectly with the chocolate.

  • Minty Fresh: Infuse the whipped cream with peppermint extract for a refreshing mint chocolate version.
    The coolness of the mint complements the chocolate, making every forkful feel like a cool breeze on a warm summer night.

Chocolate Hazelnut Mousse Pie Recipe FAQs

How do I know if my hazelnuts are fresh and ready for toasting?
Fresh hazelnuts have a firm shell (if unroasted) or a crisp texture and a rich aroma when toasted. Avoid nuts with dark spots all over or a musty smell, as these indicate staleness or spoilage. Toasting brings out their nutty flavor, so use freshly roasted hazelnuts for the best mousse pie experience.

What’s the best way to store leftover Chocolate Hazelnut Mousse Pie?
Store your pie in the refrigerator covered tightly with plastic wrap or in an airtight container. This will keep it fresh and delicious for up to 3 days. I recommend slicing before storing to make serving easier later. Always keep it chilled to maintain the mousse’s airy texture and prevent it from softening too much.

Can I freeze Chocolate Hazelnut Mousse Pie, and how should I do it?
Absolutely! Freezing preserves that luscious mousse for up to 1 month. To freeze, cut the pie into individual slices, then wrap each slice tightly in plastic wrap followed by a layer of aluminum foil. Place the wrapped slices in a sealed freezer bag to protect them from freezer burn. When ready, thaw slices in the fridge overnight—no reheating needed—to enjoy the mousse at its perfect silky texture.

Why did my mousse turn out a bit grainy, and how can I fix it?
Grainy mousse often happens when chocolate overheats or the heavy cream is overwhipped. To prevent this, melt chocolate gently over a warm water bath without direct heat and whip cream just to stiff peaks—stop as soon as it holds shape but before it becomes dry. Next time, fold cream gently into the chocolate mixture to keep that velvety, smooth texture you want in every bite.

Is Chocolate Hazelnut Mousse Pie safe for pets or those with nut allergies?
This recipe is not safe for pets, especially dogs, due to both chocolate and hazelnuts being toxic to them. Also, anyone with nut allergies should avoid it or substitute with a nut-free chocolate mousse version. If serving guests, always inform them about the hazelnut content to prevent any allergic reactions.

Chocolate Hazelnut Mousse Pie

Irresistible Chocolate Hazelnut Mousse Pie You’ll Crave Tonight

This Chocolate Hazelnut Mousse Pie features a creamy mousse made of rich chocolate and toasted hazelnuts, delivering an indulgent dessert experience.
Prep Time 30 minutes
Chill Time 2 hours
Total Time 2 hours 30 minutes
Servings: 8 slices
Course: Dessert
Cuisine: American
Calories: 350

Ingredients
  

For the Crust
  • 1 cup chocolate cookie crumbs Use finely crushed cookies for a sturdy, flavorful base.
  • 1/4 cup unsalted butter Melted to bind the crumbs and add richness to your crust.
  • 2 tablespoons sugar Just a touch to balance the cocoa bitterness in the crust.
For the Mousse Filling
  • 8 ounces dark chocolate Choose good-quality chocolate to elevate the flavor.
  • 1 cup heavy cream Whipped until stiff peaks form to create the mousse’s texture.
  • 3 large egg yolks Provide creaminess and help set the mousse filling.
  • 1/4 cup sugar Adds sweetness while enhancing the chocolate’s richness.
  • 1/2 cup toasted hazelnuts Chop roughly for nutty crunch and aroma.
For Garnish
  • 1 cup whipped cream Dolloped on top for a cloud-like finish.
  • 1/4 cup hazelnut pieces or curls Sprinkled for added texture.

Equipment

  • 9-inch pie pan
  • medium bowl
  • Whisk
  • rubber spatula
  • double boiler

Method
 

For the Crust
  1. Combine chocolate cookie crumbs, melted butter, and sugar in a medium bowl until moistened.
  2. Press the mixture into a 9-inch pie pan and chill in the fridge for 15 minutes to set.
For the Mousse Filling
  1. Beat heavy cream until stiff peaks form, about 3–4 minutes at high speed.
  2. Melt dark chocolate and egg yolks together over a warm water bath, stirring until smooth.
  3. Fold whipped cream into melted chocolate mixture in three batches until streaks disappear.
  4. Stir in chopped toasted hazelnuts.
  5. Transfer the pie to the refrigerator and chill for at least 2 hours.
For the Garnish
  1. Pipe or dollop whipped cream over each slice and sprinkle hazelnut pieces or curls on top.

Nutrition

Serving: 1slicesCalories: 350kcalCarbohydrates: 30gProtein: 5gFat: 25gSaturated Fat: 10gPolyunsaturated Fat: 6gMonounsaturated Fat: 15gCholesterol: 80mgSodium: 150mgPotassium: 200mgFiber: 3gSugar: 18gVitamin A: 500IUVitamin C: 1mgCalcium: 50mgIron: 2mg

Notes

Serve with a sprinkle of sea salt for contrast. Allow to chill thoroughly for perfect texture.

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