Chocolate Mousse Cake is a rich and decadent dessert that features layers of fluffy chocolate mousse sandwiched between a light chocolate cake. This indulgent treat is perfect for special occasions or whenever you crave something sweet and luxurious.
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Ingredients
For the Chocolate Cake:
- 1 cup all-purpose flour
- 1 cup granulated sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1/2 cup unsalted butter (melted)
- 2 large eggs
- 1 teaspoon vanilla extract
- 1/2 cup buttermilk
For the Chocolate Mousse:
- 8 oz semi-sweet chocolate (chopped)
- 2 tablespoons unsalted butter
- 3 large eggs (separated)
- 1/4 cup granulated sugar
- 1 cup heavy cream
- 1 teaspoon vanilla extract
- Pinch of salt
For Garnish:
- Whipped cream
- Chocolate shavings or cocoa powder
- Fresh berries (optional)
Timing
Making the Chocolate Mousse Cake takes about 30 minutes for preparation and 30 minutes for baking, plus chilling time for the mousse.
Instructions
Step 1: Bake the Chocolate Cake
- Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan.
- Mix Dry Ingredients: In a large bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Combine Wet Ingredients: In another bowl, mix the melted butter, eggs, vanilla extract, and buttermilk until well combined.
- Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until just combined.
- Bake: Pour the batter into the prepared cake pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let it cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely.
Step 2: Prepare the Chocolate Mousse
- Melt Chocolate: In a heatproof bowl over simmering water, melt the chopped chocolate and butter together, stirring until smooth. Remove from heat and let cool slightly.
- Whip Egg Yolks: In a separate bowl, whisk the egg yolks and sugar together until pale and fluffy. Gradually add the melted chocolate mixture to the egg yolks, stirring until well combined.
- Whip Egg Whites: In another clean bowl, beat the egg whites with a pinch of salt until stiff peaks form.
- Whip Cream: In a separate bowl, whip the heavy cream and vanilla extract until soft peaks form.
- Fold Ingredients: Gently fold the whipped egg whites into the chocolate mixture, followed by the whipped cream, until no streaks remain.
Step 3: Assemble the Cake
- Layer Cake: Once the chocolate cake has cooled completely, slice it in half horizontally to create two layers.
- Add Mousse: Place one layer of cake on a serving plate. Spread half of the chocolate mousse over the top. Place the second layer of cake on top and spread the remaining mousse over the top and sides of the cake.
- Chill: Refrigerate the cake for at least 2 hours to allow the mousse to set.
Step 4: Serve
- Garnish: Before serving, garnish with whipped cream, chocolate shavings or cocoa powder, and fresh berries if desired.
- Enjoy: Slice and serve the Chocolate Mousse Cake chilled for a rich and delightful dessert experience!

Nutritional Information
Here’s a quick overview of the nutritional content of the Chocolate Mousse Cake (per serving, based on 12 servings):
| Nutrient | Amount per Serving |
|---|---|
| Calories | 350 |
| Protein | 5g |
| Fat | 25g |
| Carbohydrates | 30g |
| Fiber | 2g |
| Sugar | 18g |
Tips for Customization
- Flavor Variations: Add a splash of coffee or espresso to the chocolate mousse for an enhanced chocolate flavor.
- Gluten-Free Option: Substitute all-purpose flour with a gluten-free flour blend for a gluten-free version.
- Decorative Toppings: Consider adding caramel sauce or a sprinkle of sea salt for an extra layer of flavor.
Conclusion
Chocolate Mousse Cake is a luxurious dessert that combines the richness of chocolate with the lightness of mousse, creating a delightful treat for any occasion. This recipe is sure to impress your guests and satisfy your chocolate cravings. Enjoy this delightful recipe!
Chocolate Mousse Cake Recipe
Ingredients
- For the Chocolate Cake:
- • 1 cup all-purpose flour
- • 1 cup granulated sugar
- • 1/2 cup unsweetened cocoa powder
- • 1 teaspoon baking powder
- • 1/2 teaspoon baking soda
- • 1/4 teaspoon salt
- • 1/2 cup unsalted butter (melted)
- • 2 large eggs
- • 1 teaspoon vanilla extract
- • 1/2 cup buttermilk
- For the Chocolate Mousse:
- • 8 oz semi-sweet chocolate (chopped)
- • 2 tablespoons unsalted butter
- • 3 large eggs (separated)
- • 1/4 cup granulated sugar
- • 1 cup heavy cream
- • 1 teaspoon vanilla extract
- • Pinch of salt
- For Garnish:
- • Whipped cream
- • Chocolate shavings or cocoa powder
- • Fresh berries (optional)
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan.
- Mix Dry Ingredients: In a large bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Combine Wet Ingredients: In another bowl, mix the melted butter, eggs, vanilla extract, and buttermilk until well combined.
- Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until just combined.
- Bake: Pour the batter into the prepared cake pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let it cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely.
- Melt Chocolate: In a heatproof bowl over simmering water, melt the chopped chocolate and butter together, stirring until smooth. Remove from heat and let cool slightly.
- Whip Egg Yolks: In a separate bowl, whisk the egg yolks and sugar together until pale and fluffy. Gradually add the melted chocolate mixture to the egg yolks, stirring until well combined.
- Whip Egg Whites: In another clean bowl, beat the egg whites with a pinch of salt until stiff peaks form.
- Whip Cream: In a separate bowl, whip the heavy cream and vanilla extract until soft peaks form.
- Fold Ingredients: Gently fold the whipped egg whites into the chocolate mixture, followed by the whipped cream, until no streaks remain.
- Layer Cake: Once the chocolate cake has cooled completely, slice it in half horizontally to create two layers.
- Add Mousse: Place one layer of cake on a serving plate. Spread half of the chocolate mousse over the top. Place the second layer of cake on top and spread the remaining mousse over the top and sides of the cake.
- Chill: Refrigerate the cake for at least 2 hours to allow the mousse to set.
- Garnish: Before serving, garnish with whipped cream, chocolate shavings or cocoa powder, and fresh berries if desired.
- Enjoy: Slice and serve the Chocolate Mousse Cake chilled for a rich and delightful dessert experience!
Step 1: Bake the Chocolate Cake
Step 2: Prepare the Chocolate Mousse
Step 3: Assemble the Cake
Step 4: Serve
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