Recipe:
- 30 g butter
- 2 teaspoon dark cocoa powder
- 3 eggs (separated)
- 1 cup icing sugar
Mix butter and dark cocoa powder in a pot over low heat. Stir until melted, then set aside to cool. Whisk the egg yolks and sugar in a bowl until nearly white and thick in consistency. Whisk the egg whites. Then gently combine all the three mixtures. Transfer the mousse to small glass cups and chill in the fridge for 1-2 hours, or overnight.