2 cups peanut butter 2 1/2 cups powdered sugar 1/2 cup brown sugar 1 teaspoon vanilla extract 1/2 cup graham cracker crumbs 1/2 cup melted butter ***TOPPING*** 2 squares semi-sweet baking chocolate 1 tablespoon peanut butter
Combine all ingredients except topping ingredients. Mix well and place in a buttered 9" square pan. Melt the topping ingredients together (the microwave works well for this) and spread over the top of the peanut butter mixture. Chill until topping is firm.