Ingredients:
For the chocolate sponge cake: 4 egg whites, 2 egg yolks, 1/4 tsp. cream of tartar, 1 pinch salt, 1/3 cup sugar, 1 tsp. vanilla extract, 1/4 cup flour, 1/4 cup cocoa powder.
For the chocolate mousse follow my chocolate mousse recipe.
For decorating the chocolate mousse cake: 5 cubes semi-sweet baker's chocolate (about 5 oz.),
75 ml. whipping cream,
1 tsp. vanilla extract,
white chocolate shavings.