1/4 c. corn oil butter
1/2 c. sugar
1/2 c. brown sugar, packed
1/2 c. all purpose flour
2 tbsp. unsweetened cocoa
2 egg whites
1 tsp. vanilla extract
Non stick cooking spray
1/4 c. walnuts, chopped

Melt the butter in large bowl. Add all ingredients except walnuts. Mix well. Stir in walnuts. Spread batter evenly in an 8 x 8 x 2 metal pan sprayed with nonstick cooking spray. Bake at 350 degrees for 30 minutes or until done. The middle portion should be soft. Cool before cutting 2 inch square.