Chocolate Mousse Cake Recipe

There’s something irresistibly tempting about the perfect chocolate mousse cake – it’s rich, decadent, and an all-time favorite dessert for chocolate lovers. This recipe will guide you through creating a melt-in-your-mouth experience that balances fluffy mousse with dense cake, perfect for any occasion or celebration.
Growing up, Sunday afternoons meant one thing in our household – my mother’s famous chocolate mousse cake. She would let me help with whisking the mousse, and I’d eagerly watch the cake rise in the oven, its rich aroma filling our kitchen. It was during one of those afternoons that I realized how food not only satisfies the palate but also creates lasting memories and bonds. This cake holds a special place in my family’s heart, and I am thrilled to share this cherished recipe with you.
Why You’ll Love This Recipe
This chocolate mousse cake is a decadent delight that is sure to impress. Here are several reasons why it’s exceptional:
- Simple Ingredients: You only need items easily found at your local grocery store.
- Make-Ahead Delight: Perfect for preparing ahead and freeing up time on the day of your event.
- Crowd-Pleaser: Rich chocolate flavor that’s suited for both casual gatherings and elegant dinners.
Ingredients Notes
The key to success with this recipe lies in quality ingredients. Make sure to use good quality chocolate for a truly indulgent taste. If you’re out of heavy cream, coconut cream acts as a great substitute, offering a unique but subtle twist.
Recipe Steps
Step 1
Preheat your oven to 350°F (175°C) and grease a springform pan. This will ensure your cake doesn’t stick and comes out in perfect shape.
Step 2
Melt the chocolate and butter together. You can do this using a microwave in 30-second intervals or on a double boiler, then let it cool slightly.
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Step 3
In a separate bowl, beat egg yolks and sugar until thick and pale. Gradually add the melted chocolate mixture and sifted flour, folding gently to maintain lightness.
Step 4
Beat the egg whites in a clean, dry bowl until stiff peaks form. Incorporate this into the chocolate batter slowly to preserve the airiness of the mousse.
Step 5
Bake for about 25 minutes or until the cake is firm to touch. Allow it to cool completely before removing from the pan and layering with mousse and ganache.
Storage Options
Store any leftover mousse cake in the refrigerator, covered well with plastic wrap, for up to 3 days. For longer storage, wrap slices in plastic wrap and aluminum foil, then freeze for up to a month. Thaw in the fridge and enjoy without losing the texture or flavor.
Variations & Substitutions
- For a nutty twist, fold in a handful of crushed hazelnuts or almonds into the cake batter.
- If dairy-free, use coconut cream instead of heavy cream, and consider dark chocolate chips instead of milk chocolate.
- Add a hint of coffee by incorporating 2 teaspoons of espresso powder into the mousse for a mocha flavor.
Frequently Asked Questions
Can I use milk chocolate instead of dark chocolate? Yes, you can substitute milk chocolate, but remember that it is sweeter and milder, which might slightly alter the cake’s richness. Dark chocolate provides a more intense flavor that’s ideal for balancing the sweetness of the mousse layers.
Is it necessary to use a springform pan? While a springform pan is recommended for easy removal and presentation, you can use a regular round cake pan if that’s what you have. Just ensure the cake is completely cool and gently run a knife around the edges before attempting to remove it.
How can I make this recipe gluten-free? Simply replace the all-purpose flour with a gluten-free flour blend. This substitution works seamlessly, giving you a gluten-free delight without compromising the cake’s structure or taste. Make sure your chocolate is also certified gluten-free.

Chocolate Mousse Cake Recipe
Ingredients
Main Ingredients
- 1.5 cups heavy cream chilled
- 8 oz dark chocolate finely chopped
- 0.5 cup granulated sugar
- 1 tsp vanilla extract
Instructions
Preparation Steps
- Melt the dark chocolate in a heatproof bowl over simmering water until smooth. Let it cool.
- Whip the heavy cream with vanilla extract until soft peaks form.
- Fold the cooled chocolate into the whipped cream gently.
- Pour the mixture into a springform pan and smooth the top.
- Refrigerate the cake for at least 4 hours before serving.