1 stick margarine
1/2 cup sugar
2 cup flour
4 egg yolks
1 tsp baking soda
pinch of salt
vanilla

4 egg whites
Milk, to desired consistency

Beat margarine and sugar. Add egg yolks. Add remaining ingredients, except egg whites and milk.

Beat egg whites until extremely stiff. Fold egg whites into batter. Add enough milk to create desired consistency.