3 tb Shortening
2 tb Butter
2/3 c  Sugar
1/2 ts Vanilla
1 c  Flour
1 1/2 ts Baking powder
1/2 ts Salt
1/3 c  Milk
4    Egg whites; stiffly beaten
Frosting of choice

Cream shortening, butter and sugar until light. Add vanilla and mix well.
Sift flour with baking powder and salt. Add to creamed mixture alternately
with milk, beating after each addition. Gently fold in egg whites. Turn
into greased and lightly floured 9-inch round layer cake pan and bake at
375F 18 to 20 minutes, or until cake springs back when lightly touched.
Cool in pans 10 minutes, then remove and cool completely. Frost with
favorite frosting.