3 1/2 c. sugar
5 tsp. baking powder
3/4 c. butter
1 1/2 c. milk
1 tsp. vanilla
5 egg whites, beaten until stiff

Cream butter and sugar which have been sifted three times. Add milk and flavoring. Fold in beaten egg whites. Bake in 3 cake pans or as a sheet cake. Use any desired icing.