Ingredients
2 1/4 c flour
1 1/2 c sugar
1 tsp salt
1 tsp baking soda
1 tsp baking powder
1/4 c butter or margarine
1/4 c shortening
1 1/2 tsp vanilla
1 c buttermilk
4 egg whites
Preparation
Sift together dry ingredients in a large bowl. Add butter, shortening, vanilla and 3/4 c buttermilk. Beat 2 minutes with electric mixer. Add remaining buttermilk and egg whites. Beat 2 minutes more. Bake at 350 degrees for 25 - 30 minutes for round pans or 30 - 35 minutes for 9x13 pan.