If you are a chocolate lover seeking that perfect indulgent dessert, this Chocolate Mousse Cake Recipe is an absolute must-try. Combining the rich, velvety texture of mousse with the satisfying solidity of cake, it offers a heavenly bite that feels both luxurious and comforting. With just a handful of simple ingredients, this recipe brings together deep dark chocolate, fluffy whipped egg whites, and a hint of coffee to elevate every forkful. Whether you’re impressing guests or treating yourself, this Chocolate Mousse Cake Recipe shines with elegance and pure chocolate bliss.

Ingredients You’ll Need
The beauty of this Chocolate Mousse Cake Recipe lies in the simplicity and quality of its ingredients. Each element plays a crucial role, from the creamy butter enriching the texture to the coffee granules that subtly enhance the chocolate flavor, making every bite unforgettable.
- Dark Chocolate, 10 oz (300 g): Choose high-quality dark chocolate for that deep, intense cocoa flavor that forms the cake’s foundation.
- Unsalted Butter, 5 oz (150 g): Adds richness and moisture, creating that melt-in-your-mouth softness.
- Instant Coffee Granules, 1 tsp (optional): A small touch to boost the chocolate’s depth without overpowering sweetness.
- Large Eggs, 4 (separated): Egg yolks provide body and color; egg whites whipped add essential airiness.
- Granulated Sugar, 3/4 cup (150 g): Balances the bitterness of chocolate and stabilizes the meringue.
- Vanilla Extract, 1 tsp: Enhances overall flavor with a warm, sweet aroma.
- Pinch of Salt: Brings out the chocolate’s complexity and heightens sweetness.
- Whipped Cream (optional): For serving—adds light creaminess on top.
- Cocoa Powder (optional): Perfect for dusting to give a beautiful finishing touch.
- Fresh Berries (optional): Raspberries or strawberries provide refreshing tartness and vibrant color.
How to Make Chocolate Mousse Cake Recipe
Step 1: Prepare Your Baking Pan and Oven
Start by preheating your oven to 350°F (175°C). Grease an 8-inch springform cake pan and line the base with parchment paper to ensure your cake releases beautifully. Proper preparation here sets you up for success.
Step 2: Melt Chocolate and Butter Together
Using a double boiler setup, gently melt the chopped dark chocolate and cubed butter together, stirring occasionally until silky smooth. If you’re using instant coffee granules, add them now for a subtle, grown-up flavor boost. Then, let this mixture cool slightly before continuing.
Step 3: Whisk Egg Yolks and Sugar
In a large bowl, beat the egg yolks with half the sugar until the mixture turns pale and thickens, then stir in the vanilla extract. This step is key for creating a luscious, creamy base for your mousse cake.
Step 4: Combine Chocolate with Egg Yolk Mixture
Gently fold your slightly cooled chocolate and butter mixture into the beaten yolks. Work carefully to keep the mixture smooth and well blended, the base flavor and texture for the cake coming alive here.
Step 5: Beat Egg Whites to Stiff Peaks
Clean your mixing bowl well to avoid grease, then whip egg whites with a pinch of salt until soft peaks form. Gradually add the remaining sugar and beat until stiff, glossy peaks develop—this is what will give your cake its delightful lightness.
Step 6: Fold Egg Whites Into Chocolate Mixture
Carefully fold the fluffy egg whites into your chocolate batter in three additions. Use a gentle hand with a spatula to maintain aeration—this ensures the airy mousse texture that’s so irresistible.
Step 7: Bake the Cake
Pour the batter into your prepared springform pan, smoothing the top evenly. Bake for 25-30 minutes, watching for the edges to set but the center to still look slightly soft. Don’t worry—it will firm up beautifully as it cools.
Step 8: Cool and Remove from Pan
Let the cake rest in the pan for about 15 minutes before gently removing the springform sides. Transfer it to a wire rack to cool completely, allowing the texture to fully develop into that dreamy mousse-cake hybrid.
Step 9: Final Touches
Dust the top lightly with cocoa powder for an elegant look. Serve the cake with whipped cream and fresh berries if you want to add a touch of freshness and extra indulgence.
How to Serve Chocolate Mousse Cake Recipe

Garnishes
A simple dusting of cocoa powder turns this cake into a showstopper, but adding a swirl of softly whipped cream next to juicy fresh berries makes every slice a feast for the eyes and the palate. These accents balance the rich chocolate with a hint of sweetness and brightness.
Side Dishes
Serve your Chocolate Mousse Cake with a cup of rich espresso or a splash of cold milk to complement the deep cocoa notes. Fresh fruit salad or lightly toasted nuts also pair wonderfully, adding texture contrasts and extra layers of flavor.
Creative Ways to Present
For a fun twist, try layering slices of the mousse cake between fresh berries and whipped cream for individual parfait-style servings. Or drizzle raspberry coulis over the top before garnishing to add a tangy splash of color that makes every bite exciting.
Make Ahead and Storage
Storing Leftovers
This cake keeps beautifully in the refrigerator, covered tightly with plastic wrap or stored in an airtight container to preserve moisture and flavor. Enjoy within 3 days for the best experience—though it rarely lasts that long!
Freezing
You can freeze slices of the mousse cake by wrapping them snugly in plastic wrap and then placing them into a freezer-safe container or bag. Thaw overnight in the refrigerator before serving to retain the ideal texture and taste.
Reheating
Because of its delicate mousse texture, this cake is best enjoyed chilled and not reheated. If you prefer it closer to room temperature, simply let it sit out for 15-20 minutes before digging in.
FAQs
Can I use milk chocolate instead of dark chocolate?
While milk chocolate can be substituted, dark chocolate is preferred in this recipe for a richer and more intense flavor. Milk chocolate will yield a sweeter, less intense cake.
Is the coffee granule optional?
Yes! The instant coffee granules deepen the chocolate flavor but can be omitted if you prefer a pure chocolate taste or have caffeine sensitivities.
Can I make this cake egg-free?
This particular recipe relies heavily on eggs for structure and texture, so it’s not easily adapted to be egg-free without a significant change in method and ingredients.
How can I tell when the cake is done?
The edges should look set and slightly firm, while the center remains a little soft to the touch. It will firm up as it cools, so avoid overbaking to keep it delightfully mousse-like.
What is the best way to serve this cake?
Chilled or at room temperature with fresh berries and whipped cream is classic. Pair it with a cup of coffee or dessert wine for an extra special treat.
Final Thoughts
This Chocolate Mousse Cake Recipe is one of those desserts that feels both indulgent and approachable, making it perfect for any occasion. Once you try it, you’ll understand why it’s become a favorite—it’s rich yet light, simple yet elegant, and completely irresistible. Go ahead and make this cake your next dessert adventure; your chocolate-loving heart will thank you!
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Chocolate Mousse Cake Recipe
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 50 minutes
- Yield: 8 servings
- Category: Dessert
- Method: Baking
- Cuisine: French-inspired
Description
This decadent Chocolate Mousse Cake combines rich dark chocolate with light, airy whipped egg whites to create a perfect balance of intense flavor and delicate texture. Baked until just set with a slightly soft center, this elegant dessert is enhanced with a hint of instant coffee for depth and served with optional whipped cream and fresh berries for a beautiful presentation.
Ingredients
Chocolate Mixture
- 10 oz (300 g) dark chocolate, chopped
- 5 oz (150 g) unsalted butter, cubed
- 1 teaspoon instant coffee granules (optional)
Egg Mixture
- 4 large eggs, separated
- 3/4 cup (150 g) granulated sugar, divided
- 1 teaspoon vanilla extract
- A pinch of salt
To Serve (Optional)
- Whipped cream
- Cocoa powder, for dusting
- Fresh berries (raspberries or strawberries)
Instructions
- Preheat and prepare pan: Preheat the oven to 350°F (175°C). Grease an 8-inch (20 cm) springform cake pan and line the base with parchment paper to prevent sticking.
- Melt chocolate and butter: In a heatproof bowl set over a pot of simmering water (double boiler), melt the chopped dark chocolate and cubed butter, stirring occasionally until smooth. Stir in the instant coffee granules for added flavor depth. Remove from heat and allow the mixture to cool slightly.
- Whisk egg yolks with sugar: In a large bowl, whisk the egg yolks with 1/2 cup (100 g) of granulated sugar until the mixture is pale, thick, and creamy. Stir in vanilla extract to enhance flavor.
- Combine chocolate and yolks: Gradually fold the melted chocolate mixture into the egg yolk mixture, mixing gently until smooth and fully incorporated.
- Beat egg whites: In a separate clean bowl, beat the egg whites with a pinch of salt until soft peaks form. Gradually add the remaining 1/4 cup (50 g) sugar while continuing to beat until the whites reach stiff, glossy peaks.
- Fold egg whites into chocolate mixture: Gently fold the beaten egg whites into the chocolate mixture in three additions, using a spatula. Take care not to deflate the mixture; fold until just combined for a light texture.
- Pour and bake: Pour the batter into the prepared springform pan and smooth the top evenly. Bake in the preheated oven for 25-30 minutes, until the edges are set but the center remains slightly soft.
- Cool the cake: Allow the cake to cool in the pan for 15 minutes for easy removal of the sides. Then release the springform pan sides and transfer the cake to a wire rack to cool completely.
- Finish and serve: Dust the top of the cooled cake with cocoa powder. Serve with optional whipped cream and fresh berries for a visually stunning and delightful treat.
Notes
- Adding instant coffee granules is optional but enhances the chocolate flavor.
- Be gentle when folding egg whites to keep the mousse light and airy.
- The cake will be slightly soft in the center when baked, but will firm up as it cools.
- Use a springform pan for easy release and a flawless presentation.
- Fresh berries and whipped cream are optional but add a lovely contrast in taste and texture.

