Decadent Triple Chocolate Mousse Cake
Decadent Triple Chocolate Mousse Cake is a showstopping dessert that layers rich chocolate flavor in three irresistible forms. It begins with a moist chocolate cake base, topped by a silky dark chocolate mousse, followed by a luscious milk chocolate mousse, and finished with a light, airy white chocolate mousse. Each layer melts smoothly into the next, creating a perfect harmony of textures and intensities. Beautifully topped with chocolate shavings or ganache, this elegant cake is ideal for celebrations, special occasions, or anytime you want to impress with a truly luxurious treat.
Time:
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Prep: 45 minutes
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Chill: 4–6 hours or overnight
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Serves: 10–12
Ingredients:
For the Chocolate Cake Base:
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1/2 cup (60g) all-purpose flour
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1/4 cup (25g) unsweetened cocoa powder
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1/2 tsp baking soda
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1/4 tsp salt
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1/2 cup (100g) sugar
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1/4 cup (60ml) vegetable oil
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1/2 cup (120ml) buttermilk
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1 egg
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1/2 tsp vanilla extract
For the Dark Chocolate Mousse:
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4 oz (115g) dark chocolate, chopped
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3/4 cup (180ml) heavy cream
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1/2 tsp vanilla extract
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1/2 tsp gelatin + 1 tbsp cold water
For the Milk Chocolate Mousse:
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4 oz (115g) milk chocolate, chopped
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3/4 cup (180ml) heavy cream
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1/2 tsp gelatin + 1 tbsp cold water
For the White Chocolate Mousse:
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4 oz (115g) white chocolate, chopped
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3/4 cup (180ml) heavy cream
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1/2 tsp gelatin + 1 tbsp cold water
Instructions:
1. Make the Cake Base:
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Preheat oven to 350°F (175°C). Grease and line the bottom of a 9-inch springform pan.
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In a bowl, whisk together flour, cocoa powder, baking soda, and salt.
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In another bowl, whisk sugar, oil, buttermilk, egg, and vanilla.
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Combine wet and dry ingredients. Mix until just combined.
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Pour into the pan and bake for 15–18 minutes or until a toothpick comes out clean.
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Let cool completely in the pan.
2. Make the Dark Chocolate Mousse Layer:
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Sprinkle gelatin over cold water; let sit 5 minutes.
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Melt dark chocolate until smooth (microwave or double boiler).
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Heat 2 tbsp of the cream and dissolve gelatin into it.
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Stir gelatin mixture and vanilla into the melted chocolate.
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Whip remaining cream until soft peaks form, then gently fold into chocolate.
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Spread over cooled cake base and refrigerate for 30–45 minutes.
3. Repeat for Milk Chocolate Mousse Layer:
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Use the same method as above with milk chocolate.
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Pour over the dark chocolate layer and refrigerate another 30–45 minutes.
4. Repeat for White Chocolate Mousse Layer:
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Use the same method with white chocolate.
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Pour over the milk chocolate layer and refrigerate for at least 4 hours or overnight.
To Serve:
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Run a warm knife around the inside edge of the springform before releasing.


