Chocolate Mousse Cake

Name: Chocolate Mousse Cake
Prep time: 45 min
Cook time: 30 min
Total time: 315 min
Yield: 12 slices
Cuisine: French
Ingredients: 1 cup all-purpose flour; 1/2 cup unsweetened cocoa powder; 1 tsp baking powder; 1/2 tsp baking soda; 1/4 tsp salt; 1 cup granulated sugar; 2 large eggs (room temperature); 1/2 cup vegetable oil; 1 tsp vanilla extract; 1 cup whole milk (room temperature); 200 g dark chocolate (finely chopped); 3 large eggs (separated, room temperature); 1/4 cup granulated sugar; 1 cup heavy cream (cold)

315 min 12 slices Medium

All Recipes

Indulge in a rich and creamy chocolate mousse cake that's perfect for any special occasion.

Prep

45 min

Cook

30 min

Total

315 min

Servings

Difficulty

Medium

Chocolate mousse cake is a decadent dessert that combines the velvety texture of chocolate mousse with the moistness of a cake. This dessert is perfect for chocolate lovers who enjoy a rich yet airy treat. The origins of chocolate mousse can be traced back to the French culinary tradition, where mousse refers to a light and airy dish. When combined with the classic cake, it creates an irresistible dessert that is both elegant and satisfying.

Instructions

Prepare the cake batter

Preheat your oven to 350°F (175°C). Grease and flour a 23 cm (9-inch) round cake pan. In a large bowl, whisk together flour, cocoa powder, baking powder, baking soda, and salt.

Pro tip: Sift dry ingredients to remove any lumps.

Mix wet ingredients

In another bowl, beat sugar and eggs until light and fluffy. Gradually add oil and vanilla, mixing until combined.

Combine and bake

Alternately add flour mixture and milk to the egg mixture, starting and ending with flour. Pour batter into prepared pan and bake for 25-30 minutes, or until a toothpick inserted into the centre comes out clean. Cool completely.

Pro tip: Do not overmix to avoid a dense cake.

Prepare the chocolate mousse

Melt the chocolate over a double boiler or in the microwave in 30-second increments, stirring until smooth. Let cool slightly.

Pro tip: Ensure no water gets into the chocolate to prevent it from seizing.

Whip egg whites

In a clean bowl, beat egg whites until soft peaks form. Gradually add sugar and continue beating until stiff peaks form.

Pro tip: Use a metal or glass bowl to help the whites whip better.

Fold ingredients

Fold the melted chocolate into the egg yolks, then gently fold in the egg whites. Whip the cream to soft peaks and fold into the chocolate mixture.

Pro tip: Fold gently to keep the mousse light.

Assemble the cake

Slice the cooled cake in half horizontally. Spread a layer of mousse on the bottom half, top with the second cake layer, and cover the entire cake with the remaining mousse.

Pro tip: Chill the cake in the fridge for at least 4 hours before serving.

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Tips & Tricks

Use high-quality chocolate for a smoother mousse.
Ensure the eggs are at room temperature for better volume.
Chill the mousse enough to hold its shape when layered.
Whip cream to soft peaks for a lighter texture.

Frequently Asked Questions

What is gâteau mousse au chocolat?

It is a rich and creamy chocolate mousse cake, combining layers of chocolate mousse with a chocolate cake.

How do I make a chocolate mousse cake?

Prepare a chocolate cake base, make a chocolate mousse, and layer the mousse with the cake. Chill before serving.

What chocolate is best for mousse?

Use high-quality dark chocolate with at least 60% cocoa for a rich flavour.

Can I make mousse cake ahead of time?

Yes, you can make it a day in advance and store it in the fridge, covered.

How long should I chill the mousse cake?

Chill the assembled cake for at least 4 hours to set the mousse properly.

Serving Suggestions

Serve this chocolate mousse cake with a dusting of cocoa powder or fresh berries for a pop of colour and acidity. Pair it with a cup of strong coffee or a glass of dessert wine for a delightful end to any meal. This cake can be made a day ahead and stored in the refrigerator. Ensure it is well-covered to prevent it from absorbing any other flavours from the fridge.