1 c. butter
2 1/2 c. graham cracker crumbs
2 1/2 c. powdered sugar
1 c. peanut butter
12 oz. bag chocolate chips
2 tbsp. butter

Melt 1 cup butter in medium saucepan. Add graham cracker crumbs, sugar and peanut butter. Spread in 13 x 9 x 2 inch pan. In double boiler, melt chocolate chips and butter. Pour on top of peanut butter layer. Refrigerate for 30 minutes. Cut into bars.