Dark Chocolate Mousse Cake (Printable version)
Layers of moist chocolate sponge and velvety dark chocolate mousse topped with glossy chocolate glaze.
# Ingredient List:
→ Chocolate Sponge
01 - 3 large eggs, room temperature
02 - 100 g granulated sugar
03 - 80 g all-purpose flour
04 - 20 g unsweetened cocoa powder
05 - 1/2 tsp baking powder
06 - 1/4 tsp salt
07 - 30 ml whole milk
08 - 30 ml vegetable oil
09 - 1 tsp vanilla extract
→ Dark Chocolate Mousse
10 - 250 g high-quality dark chocolate (60–70%), chopped
11 - 400 ml heavy cream, cold
12 - 3 large egg yolks, room temperature
13 - 60 g granulated sugar
14 - 2 tbsp water
15 - 1/2 tsp vanilla extract
16 - Pinch of salt
→ Chocolate Glaze
17 - 120 g dark chocolate, chopped
18 - 80 ml heavy cream
19 - 1 tbsp unsalted butter
# How to Make It:
01 - Preheat oven to 350°F. Grease and line the base of a 9-inch springform pan with parchment paper.
02 - Sift together flour, cocoa powder, baking powder, and salt in a bowl.
03 - Beat eggs and sugar with an electric mixer until pale and tripled in volume, approximately 5 minutes.
04 - Gently fold dry ingredients into egg mixture. Drizzle in milk, oil, and vanilla extract; mix gently until just combined.
05 - Pour batter into prepared pan and bake for 18–20 minutes or until a toothpick inserted in the center comes out clean. Cool completely in the pan.
06 - Melt dark chocolate in a heatproof bowl over simmering water, stirring until smooth. Cool slightly.
07 - Combine sugar and water in a small saucepan. Heat until sugar dissolves and mixture reaches a simmer.
08 - Beat egg yolks in a separate bowl. Gradually pour hot syrup into yolks while whisking constantly until mixture is pale and thick.
09 - Stir melted chocolate and vanilla extract into the egg yolk mixture. Add a pinch of salt.
10 - Whip cold cream to soft peaks. Fold one-third of whipped cream into chocolate mixture to lighten, then gently fold in remaining cream until smooth.
11 - Remove cooled sponge from pan and place on a serving platter. Clean and reassemble the springform ring around the sponge.
12 - Pour mousse over the sponge, smoothing the top evenly. Refrigerate for at least 4 hours until completely set.
13 - Heat cream until just simmering, then pour over chopped chocolate and butter. Let stand for 1 minute, then stir until glossy and smooth. Cool for 10 minutes.
14 - Remove cake from pan. Pour glaze over the mousse layer, allowing it to drip down the sides naturally. Smooth surface with a spatula.
15 - Refrigerate for 30 minutes to set the glaze before slicing and serving.
# Expert Suggestions:
01 -
- The contrast between airy mousse and dense sponge creates layers of texture in every bite
- It looks like something from a French patisserie but comes together with patience rather than advanced technique
- The make ahead nature means you can serve something spectacular without last minute stress
02 -
- Room temperature ingredients for the sponge and mousse base incorporate more evenly than cold ones
- The glaze consistency is everything—too thin and it slides off, too thick and it looks uneven
- Chilling time is not optional, as the mousse needs to be completely firm before glazing
03 -
- Brush the cooled sponge with coffee syrup before adding mousse for mocha notes that barely whisper
- Tap the pan gently on the counter after pouring mousse to release air bubbles