75g(2 1/2 oz) butter, chopped
4 eggs, separated
1 cup(8 fl oz) cream
2 TBSP icing(confectioner's) sugar
Place the egg whites in a bowl ans whisk until soft peaks form. Sift over the icing sugar and whisk until the mixture is thick and glossy.Gently fold the cream through the chocolate mixture, then fold the egg whites through.
Spoon into bowls and refrigerate for at least 3 hours.
Update: in an attempt to explain my mousse making thoughts, it seems that my English was not clear enough. I have always made mousse including egg yolks and whipped egg whites. I have sometimes gone the easier way by combining melted chocolate and whipped cream. What I meant is that I have never combined the three in one recipe.