Chocolate mousse cake

A dream for chocolate lovers. This cake is a play on textures: a thin, moist cocoa sponge base rests beneath a thick layer of airy, light chocolate mousse. The creaminess of the mousse comes from whipped cream, while the cocoa butter content of the chocolate provides structure after chilling.
🕒 Prep Time 30 mins
🍳 Cook Time 20 mins
Total Time 3 hrs
🍽️ Servings 8 servings
🔥 Calories 460 kcal
🌍 Cuisine French

Ingredients

Equipment Needed

  • Springform cake tin
  • Hand mixer
  • Bowls for melting

Allergen Information

⚠️ Cereals containing gluten
⚠️ Milk
⚠️ Eggs

Instructions

1

Prepare the sponge: whisk the eggs with the sugar until foamy, add the butter, then fold in the flour, cocoa, and baking powder.

Tip: Cocoa sponge tends to dry out; butter helps prevent this.
2

Bake at 180°C (160°C Fan) for approx. 20 minutes in the cake tin. Cool completely.

Tip: Once ready, leave in the tin as the cream goes on top.
3

For the mousse, melt the chocolate and let cool to lukewarm.

Tip: Hot chocolate will melt the whipped cream!
4

Whip the cream, then fold together with the chocolate.

Tip: First mix a little foam into the chocolate (to loosen), then add the rest.
5

Smooth over the sponge and chill for 3 hours.

Tip: Dip the knife in hot water for slicing.

Recipe FAQ

Why is the mousse hard?
You used too much chocolate relative to the cream, or chilled it too long at a very low temperature. Let it stand at room temperature for a bit before serving.

Ingredients

  • 200 g Dark chocolate (for cream)
  • 300 ml Double cream (for cream)
  • 3 Eggs (for sponge)
  • 100 g Sugar
  • 80 g Plain flour
  • 50 g Melted butter (for sponge)
  • 20 g Cocoa powder
  • 1 packet Baking powder
  • 1 pinch Salt