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Chocolate mousse cake is a heavenly dessert with a silky, melt-in-your-mouth texture. This recipe features a soft chocolate sponge base, a rich chocolate mousse layer, and a glossy hazelnut chocolate glaze. Perfect for any chocolate lover, this cake is indulgent yet surprisingly light!
This chocolate mousse cake combines a fluffy chocolate sponge, a creamy mousse layer, and a decadent chocolate glaze. With a balanced sweetness and smooth texture, it’s the perfect treat for any occasion. Follow these step-by-step instructions to create a restaurant-quality dessert at home!
Step 1: Prepare the Ingredients
Gather and measure all the ingredients before starting. Soften the gelatin in cold water, chop the chocolate, and chill the heavy cream for easier whipping. Ensure all tools, including mixing bowls and a whisk, are ready.

Step 2: Melt the Chocolate
In a heatproof bowl, combine milk chocolate (38%) and heavy cream (A). Heat over a double boiler or microwave in short intervals, stirring until smooth. Let it cool slightly before adding other ingredients.

Step 3: Dissolve the Gelatin
Drain the softened gelatin and gently melt it over low heat or in the microwave for a few seconds. Stir it into the melted chocolate mixture, ensuring it fully dissolves for a smooth mousse texture.

Step 4: Whip the Cream
In a clean, chilled bowl, whisk heavy cream (B) until soft peaks form. Be careful not to overwhip, as the mousse should remain light and airy.

Step 5: Combine the Mixtures
Gently fold a small portion of the whipped cream into the chocolate mixture to lighten it. Then, fold in the remaining whipped cream in batches, using a spatula to maintain its fluffy texture.

Step 6: Chill and Set
Transfer the mousse into serving glasses or a cake mold. Smooth the surface and refrigerate for at least 4 hours (or freeze for 2 hours) until firm and set.

Step 7: Serve and Enjoy
Once set, garnish with cocoa powder, chocolate shavings, or fresh berries. Serve chilled and enjoy the rich, velvety texture of your homemade chocolate mousse.

How do I prevent the mousse from being too soft?
Make sure to whip the cream properly to soft peaks and include gelatin, which stabilizes the mousse and helps it hold its shape.
Can I use dark chocolate instead of milk chocolate?
Yes! Substitute milk chocolate with dark chocolate (60% or higher cocoa content) for a richer, more intense flavor.
How long does chocolate mousse cake last?
It stays fresh in the refrigerator for up to 3 days. Store it in an airtight container to maintain its texture.
Conclusion
Now that you’ve mastered the art of making a chocolate mousse cake, it’s time to enjoy its rich yet airy texture! Try experimenting with different chocolate percentages or nut variations to make it your own. Share your results and tag us online!