White Cake - cooking recipe

Ingredients

1/2 c. butter
1 c. sugar
1 3/4 c. flour
1 1/4 tsp. baking powder
whites of 3 eggs
1 tsp. vanilla

Preparation

Cream butter.
Add sugar, then add sifted flour and baking powder.
Add egg whites (well beaten) and vanilla.
Bake for 30 minutes at 350\u00b0.