to tastenonechocolate shavings or curls (for garnish)
Instructions
In a heatproof bowl, combine the dark, milk, and white chocolate with the butter. Place the bowl over a pot of simmering water, stirring until melted and smooth. Remove from heat and allow to cool slightly.
In a separate bowl, whisk together the egg yolks and half of the sugar until pale and creamy. Gradually stir in the melted chocolate mixture until fully combined.
In another bowl, beat the egg whites with a pinch of salt until soft peaks form. Gradually add the remaining sugar and continue beating until glossy and stiff peaks form.
In a medium bowl, whip the heavy cream until it reaches soft peaks. Add the vanilla extract and whip until just firm.
Gently fold the whipped cream into the chocolate mixture until combined. Then, carefully fold in the whipped egg whites, a third at a time, being cautious not to deflate the mixture.
Pour half of the mousse mixture into a springform cake pan. Smooth the top with a spatula. Refrigerate for about 30 minutes until set. Once set, pour the remaining mousse over the first layer and smooth out again.
Cover and refrigerate the cake for at least 4 hours, or preferably overnight, to allow it to set properly.
When ready to serve, carefully remove the sides of the springform pan. Dust the top with cocoa powder and garnish with chocolate shavings or curls.
Notes
Serve slices on elegant dessert plates, accompanied by fresh berries for color contrast. Consider drizzling some chocolate sauce on the plate for an extra touch.