A rich and indulgent Dark Chocolate Mousse Cake that's easy to make and perfect for any occasion.
Servings 8slices
Course Dessert
Cuisine American
Ingredients
For the Cake
1cupall-purpose flourThis forms the base of our cake, giving it structure.
1/2cupunsweetened cocoa powderAdds that rich chocolate flavor essential for a Dark Chocolate Mousse Cake.
1teaspoonbaking powderThis helps the cake rise and become fluffy.
1/2teaspoonbaking sodaProvides additional leavening for a light texture.
1/4teaspoonsaltBalances the sweetness and enhances flavors.
1/2cupunsalted butterCreates a tender crumb in the cake.
1cupgranulated sugarSweetens the cake beautifully.
2largeeggsContributes moisture and richness.
1teaspoonvanilla extractAdds a warm, aromatic flavor.
1/2cupbuttermilkKeeps the cake moist and adds a subtle tang.
For the Mousse
8ozdark chocolateThe star ingredient that gives a deep, rich chocolate flavor.
2tablespoonsunsalted butterHelps to create a smooth, glossy mousse texture.
3largeeggsEgg yolks add richness; egg whites provide lightness.
1/4cupgranulated sugarSweetens and stabilizes the mousse.
1cupheavy creamWhipped to create the light and airy mousse.
1teaspoonvanilla extractEnhances the chocolate flavor in the mousse.
1pinchsaltBalances the sweetness in the mousse.
Equipment
oven
mixing bowls
whisk
spatula
Cake pan
Electric mixer
Heatproof bowl
Method
Cake Preparation
Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan to prepare it for baking.
Whisk together the flour, cocoa powder, baking powder, baking soda, and salt in a bowl.
Cream the softened butter and granulated sugar in a large mixing bowl until light and fluffy.
Beat in the eggs one at a time, followed by the vanilla extract.
Alternate adding the dry ingredients with buttermilk, starting and ending with the flour mix.
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
Melt the chopped dark chocolate and butter in a heatproof bowl over simmering water or in the microwave.
Whisk the egg yolks with granulated sugar until pale and creamy. Stir in the cooled chocolate mixture and vanilla extract.
Beat the egg whites until stiff peaks form.
Whip the heavy cream until soft peaks form.
Fold the whipped cream gently into the chocolate mixture, then add the beaten egg whites.
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.
Slice the cake and serve chilled. Garnish with chocolate shavings or fresh berries.