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Dark Chocolate Mousse Cake

Dark Chocolate Mousse Cake

450kcal
Prep 20 minutes
Cook 30 minutes
Refrigeration Time 2 hours
Total 2 hours 50 minutes
A rich and indulgent Dark Chocolate Mousse Cake that's easy to make and perfect for any occasion.
Servings 8 slices
Course Dessert
Cuisine American

Ingredients

For the Cake
  • 1 cup all-purpose flour This forms the base of our cake, giving it structure.
  • 1/2 cup unsweetened cocoa powder Adds that rich chocolate flavor essential for a Dark Chocolate Mousse Cake.
  • 1 teaspoon baking powder This helps the cake rise and become fluffy.
  • 1/2 teaspoon baking soda Provides additional leavening for a light texture.
  • 1/4 teaspoon salt Balances the sweetness and enhances flavors.
  • 1/2 cup unsalted butter Creates a tender crumb in the cake.
  • 1 cup granulated sugar Sweetens the cake beautifully.
  • 2 large eggs Contributes moisture and richness.
  • 1 teaspoon vanilla extract Adds a warm, aromatic flavor.
  • 1/2 cup buttermilk Keeps the cake moist and adds a subtle tang.
For the Mousse
  • 8 oz dark chocolate The star ingredient that gives a deep, rich chocolate flavor.
  • 2 tablespoons unsalted butter Helps to create a smooth, glossy mousse texture.
  • 3 large eggs Egg yolks add richness; egg whites provide lightness.
  • 1/4 cup granulated sugar Sweetens and stabilizes the mousse.
  • 1 cup heavy cream Whipped to create the light and airy mousse.
  • 1 teaspoon vanilla extract Enhances the chocolate flavor in the mousse.
  • 1 pinch salt Balances the sweetness in the mousse.

Equipment

  • oven
  • mixing bowls
  • whisk
  • spatula
  • Cake pan
  • Electric mixer
  • Heatproof bowl

Method

Cake Preparation
  1. Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan to prepare it for baking.
  2. Whisk together the flour, cocoa powder, baking powder, baking soda, and salt in a bowl.
  3. Cream the softened butter and granulated sugar in a large mixing bowl until light and fluffy.
  4. Beat in the eggs one at a time, followed by the vanilla extract.
  5. Alternate adding the dry ingredients with buttermilk, starting and ending with the flour mix.
  6. Pour the batter into the prepared cake pan, smoothing the top with a spatula. Bake for 25–30 minutes or until a toothpick comes out clean. Allow it to cool.
Mousse Preparation
  1. Melt the chopped dark chocolate and butter in a heatproof bowl over simmering water or in the microwave.
  2. Whisk the egg yolks with granulated sugar until pale and creamy. Stir in the cooled chocolate mixture and vanilla extract.
  3. Beat the egg whites until stiff peaks form.
  4. Whip the heavy cream until soft peaks form.
  5. Fold the whipped cream gently into the chocolate mixture, then add the beaten egg whites.
  6. Place the cooled cake on a serving plate and pour the chocolate mousse over the top, spreading it evenly. Refrigerate for at least 2 hours.
  7. Slice the cake and serve chilled. Garnish with chocolate shavings or fresh berries.

Nutrition

Serving1sliceCalories450kcalCarbohydrates40gProtein6gFat30gSaturated Fat18gPolyunsaturated Fat0.5gMonounsaturated Fat0.5gCholesterol120mgSodium150mgPotassium200mgFiber3gSugar25gVitamin A500IUCalcium50mgIron3mg

Notes

Use room temperature butter and eggs for better emulsification. Avoid overmixing the batter.

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