Cream butter. Add gradually sugar which has been sifted before measuring. Beat until smooth and creamy. Sift flour, measure, and sift with baking powder and salt. Add alternately with milk to first mixture. Add flavorings. Fold in stiffly beaten egg whites. Pour into well-oiled layer cake pans. Bake in moderate oven (375 F) about 35 minutes. Use fruit and nut filling between layers, and a boiled icing for top and sides. The Household Searchlight