3/4 c. butter, melted
1 1/2 c. sugar
1 1/2 tsp. vanilla
3 eggs
3/4 c. unsifted all-purpose flour
1/2 c. Hershey's cocoa
1/2 tsp. baking powder
1/2 tsp. salt

Mix together. Use 8 inch square pan. Bake at 350 degrees for 40-45 minutes.