2 c. peanut butter
1/2 c. melted butter
2 3/4 c. powdered sugar
3/4 c. brown sugar
1/2 tsp. vanilla

Mix all together and spread on a 10 x 15 inch cookie sheet, Cool. Melt together 1 (12 ounce) bag chocolate chips and 2 tablespoons butter. Spread on top of peanut butter, cool, cut in squares.