Chocolate Mousse
["8 oz. semi-sweet chocolate bits", "4 Tbsp. water", "1/2 tsp. vanilla flavoring", "1 1/2 Tbsp. butter", "4 egg yolks", "4 egg whites"]
["Melt the chocolate and water together in a small pan.", "Stir in the vanilla flavoring and butter, then the egg yolks, 1 at a time. Beat the egg whites until stiff.", "Fold the chocolate mixture into the egg whites, using a rubber spatula or a metal spoon.", "When thoroughly mixed, pour into a glass bowl.", "Cover and chill overnight.", "Serve with whipped cream on top."]
["semi-sweet chocolate bits", "water", "vanilla flavoring", "butter", "egg yolks", "egg whites"]