This is a great show piece of a cake.
1 Sift and measure flour. Add salt and baking powder, and sift again.
2 In a large bowl, cream shortening. Add sugar gradually, and cream until fluffy. Add sifted ingredients alternately with milk and flavoring. Beat thoroughly after each addition.
3 Beat egg whites until stiff, and fold into mixture. Pour batter into greased 9 inch round pans.
4 Bake at 350 degrees F (175 degrees C) for 25 to 30 minutes.