Cream the butter, and add one-half the sugar gradually. Beat yolks of eggs until thick and lemon-colored, and add, gradually, remaining sugar. Combine mixtures, and add milk alternately with flour mixed and sifted with baking powder and salt; then add whites of eggs beaten until stiff, melted chocolate, and vanilla. Bake in an angel-cake pan remove from pan, cool, fill the centre with whipped cream, sweetened and flavored, and pour around.

Chocolate Sauce. Boil one cup sugar, one half-cup water, and a few grains cream-of-tartar until of the consistency of a thin syrup. Melt one and one-half squares chocolate and pour on gradually the hot syrup. Cool slightly, and flavor with one-fourth teaspoon vanilla.