Description

Indulge in the Ultimate Triple Chocolate Mousse Cake, a decadent dessert featuring rich layers of dark, milk, and white chocolate mousse on a velvety chocolate cake base. Finished with a glossy chocolate ganache, this show-stopping treat is perfect for any special occasion or for serious chocolate lovers!

Ingredients

Units Scale

For the Chocolate Cake Base:

1 cup all-purpose flour
1/2 cup unsweetened cocoa powder
1 tsp baking powder
1/2 tsp baking soda
1/4 tsp salt
1/2 cup unsalted butter, softened
3/4 cup granulated sugar
2 large eggs
1 tsp vanilla extract
1/2 cup buttermilk
1/2 cup hot coffee or water

For the Dark Chocolate Mousse:

6 oz dark chocolate, chopped
1 cup heavy cream
2 tbsp powdered sugar
1 tsp gelatin powder + 2 tbsp water

For the Milk Chocolate Mousse:

6 oz milk chocolate, chopped
1 cup heavy cream
2 tbsp powdered sugar
1 tsp gelatin powder + 2 tbsp water

For the White Chocolate Mousse:

6 oz white chocolate, chopped
1 cup heavy cream
2 tbsp powdered sugar
1 tsp gelatin powder + 2 tbsp water

For the Chocolate Ganache:

1/2 cup heavy cream
4 oz dark chocolate, chopped

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Instructions

Step 1: Bake the Chocolate Cake Base

Preheat Oven: Preheat to 350°F (175°C). Grease and line a 9-inch springform pan.
Mix Dry Ingredients: In a bowl, whisk together flour, cocoa powder, baking powder, baking soda, and salt.
Make the Batter: In a separate bowl, beat butter and sugar until fluffy. Add eggs and vanilla, then mix in buttermilk. Gradually add dry ingredients, followed by hot coffee.
Bake: Pour batter into the prepared pan and bake for 20–25 minutes. Let cool completely in the pan.

Step 2: Prepare the Mousse Layers

Melt Chocolate: Melt each type of chocolate separately in heatproof bowls over a double boiler or in the microwave. Let cool slightly.
Activate Gelatin: Sprinkle gelatin over water and let bloom for 5 minutes, then microwave for 10 seconds to dissolve.
Whip Cream: In three separate bowls, whip heavy cream and powdered sugar until soft peaks form. Fold melted chocolate and gelatin into each bowl of whipped cream to create the mousses.

Step 3: Assemble the Cake

Layer the Mousse: Spread the dark chocolate mousse over the cooled cake base, smoothing evenly. Refrigerate for 15 minutes. Repeat with milk chocolate mousse, then white chocolate mousse, chilling between layers.
Chill: Refrigerate for at least 4 hours or overnight for best results.

Step 4: Make & Pour the Ganache

Prepare Ganache: Heat heavy cream until hot (not boiling) and pour over chopped dark chocolate. Let sit for 2 minutes, then stir until smooth.
Glaze the Cake: Remove the cake from the springform pan and pour ganache over the top. Let set for 10 minutes.

Step 5: Serve & Enjoy

Slice & Serve: Garnish with chocolate shavings or cocoa powder and enjoy this luxurious triple chocolate mousse cake!

Notes

Use high-quality chocolate for the best flavor.
Let each mousse layer set before adding the next for clean layers.
Store in the fridge for up to 4 days or freeze for longer storage.

Prep Time: 30 minutes
chill time: 4 hours
Cook Time: 25 minutes
Category: Dessert, Cake
Method: Baking & Chilling
Cuisine: French-Inspired