Chess Brownies - cooking recipe

Ingredients

2 c. flour
1 box light brown sugar
4 egg whites, beaten
1/2 tsp. salt
2 tsp. baking powder
4 egg yolks, beaten
2 sticks melted margarine
confectioners sugar

Preparation

Combine dry ingredients and mix well.
Add butter and egg yolks; mix well.
Fold in beaten egg whites.
Bake in a 9 x 13-inch pan for 30 to 45 minutes at 350\u00b0.
Cover with confectioners sugar.