8 oz. sour cream
3 c. sugar
3 c. cake flour
1/4 tsp. baking soda
2 sticks butter
6 eggs, separated
1 tsp. vanilla flavoring
1 tsp. lemon flavoring

Cream together sugar and butter. Add egg yolks, 1 at a time. Add sour cream. Mix together flour and baking soda; add slowly. Add vanilla and lemon flavoring. Fold in egg whites.

Bake at 350°F for 1 1/2 hours.