Speckled Chocolate Layer Cake
["1 c. butter or margarine", "8 egg yolks", "1 1/4 c. sugar", "6 egg whites", "1 1/2 c. all-purpose or cake flour", "10 oz. semi-sweet chocolate, finely grated"]
["Preheat oven to 325\u00b0.", "Grease and flour two 9-inch round cake pans. Line bottom with waxed paper or parchment paper and lightly grease the paper.", "Set aside."]
["butter", "egg yolks", "sugar", "egg whites", "all-purpose", "semi-sweet chocolate"]