1 cup HERSHEY'S Cacao 1-1/4 cups sugar. divided 1/2 cup all-purpose flour 1/4 teaspoon salt 2 cups milk 6 egg yolks. well beaten two tablespoons butter or margarine 1 teaspoon vanilla flavoring 8 egg-whites 1/4 teaspoon cream of tartar 1 cup Sweetened whipped cream Directions 1. Move oven rack to