1 1/2 c. sugar
1 3/4 c. flour
3/4 c. cocoa powder
1 1/2 tsp. baking soda
1 1/2 tsp. baking powder
4 egg whites
1 c. non-fat milk
1/2 c. applesauce
1 tsp. vanilla
1 c. boiling water

Preheat oven to 350 degrees. Using nonstick spray - grease and flour one rectangular cake pan. Combine dry ingredients; add egg whites, milk, applesauce and vanilla - mix medium speed for 2 minutes. Stir in boiling water. Bake 35-40 minutes.

FROSTING:

4 tbsp. butter
2 tbsp. plain nonfat yogurt
1/2 c. cocoa powder
2 c. powdered sugar
3 tbsp. nonfat milk
2 tsp. vanilla

Cream butter and yogurt, add cocoa and sugar alternately with milk until desired consistency. Add vanilla - you may need more milk.