Peanut Butter Brownies - cooking recipe

Ingredients

1/3 c. butter or margarine
1/2 c. peanut butter
1 c. sugar
1/4 c. brown sugar
2 eggs
1 c. sifted flour
1 tsp. baking powder
1/4 tsp. salt
1 (6 oz.) pkg. semi-sweet chocolate chips
1/2 tsp. vanilla
1 1/2 c. sugar
1 Tbsp. cornstarch
1 c. cake flour
12 egg whites
dash of salt
1 tsp. cream of tartar
1 tsp. vanilla

Preparation

Separate eggs.
Beat the whites until frothy.
Add salt and cream of tartar; continue beating until eggs are stiff.
Add the cornstarch to sugar and fold into egg whites, then fold the flour into the eggs, small amount at a time.
Bake 35 minutes at 375\u00b0.