
This magical chocolate mousse cake combines rich, velvety mousse with a soft, moist cake base for an irresistible dessert experience.
Prep
45 min
Cook
30 min
Total
315 min
Servings
10
Difficulty
Medium

Instructions
Prepare the cake base
Preheat your oven to 180°C (350°F). In a bowl, whisk the egg and sugar until light and fluffy. Stir in the melted butter.
Pro tip: Ensure the butter is not too hot to prevent cooking the egg.
Mix dry ingredients
In another bowl, sift together the flour, cocoa powder, baking powder, and salt. Gradually add to the wet mixture, alternating with milk, until smooth.
Pro tip: Sifting helps to aerate the batter, making the cake lighter.
Bake the cake
Pour the batter into a greased 20 cm (8 inch) round cake pan. Bake for 20-25 minutes until a toothpick inserted into the centre comes out clean. Let cool completely.
Pro tip: Cool the cake on a wire rack to prevent sogginess.
Melt the chocolate
In a heatproof bowl, melt the chopped chocolate over a pot of simmering water (double boiler method). Stir until smooth and set aside to cool slightly.
Pro tip: Avoid water contact with chocolate to prevent seizing.
Prepare the mousse
In a separate bowl, whisk the egg yolks with sugar until pale. Gradually add the melted chocolate, stirring continuously.
Pro tip: Ensure the chocolate is not too hot to prevent curdling the yolks.
Whip the cream
In another bowl, whip the cold cream until stiff peaks form. Gently fold the whipped cream into the chocolate mixture until well combined.
Pro tip: Use a spatula to fold gently, preserving the air in the whipped cream.
Assemble the cake
Spread the chocolate mousse over the cooled cake base, smoothing the top with a spatula. Refrigerate for at least 4 hours or until set.
Pro tip: Chill the mousse thoroughly for a firm texture.
Serve
Once set, carefully remove the cake from the pan and transfer to a serving plate. Slice and serve chilled.
Pro tip: Use a warm knife for clean slices.
Tips & Tricks
- Use high-quality chocolate for the best flavour.
- Ensure eggs are at room temperature for better whipping.
- Chill the mousse thoroughly for easy layering.
- Use a springform pan for easy removal.
Frequently Asked Questions
What makes this chocolate mousse cake 'magical'?
The magic lies in the transformation of simple ingredients into a decadent dessert with layers of mousse and cake.
Can I use milk chocolate instead of dark chocolate?
Yes, but it will result in a sweeter mousse cake. Adjust sugar to taste if necessary.
How long does the cake need to chill?
The cake needs to chill for at least 4 hours to allow the mousse to set properly.
What is the best way to slice the cake?
Use a warm knife, wiping it clean between slices, for neat and clean cuts.
Can this cake be made ahead?
Yes, it can be made a day in advance and stored in the refrigerator until serving.
How should leftovers be stored?
Store leftover cake in an airtight container in the refrigerator for up to 3 days.
Serving Suggestions
Nutrition per serving
420
Calories
6g
Protein
28g
Fat
36g
Carbs
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