1/2 c. butter
1 1/2 c. graham cracker crumbs
14 oz. sweetened condensed milk
12 oz. pkg. semi-sweet chocolate chips
1 c. peanut butter chips

Preheat oven to 350°F. Melt butter in 13x9 in. pan. Sprinkle graham cracker crumbs evenly over butter. Pour condensed milk evenly over crumbs. Sprinkle peanut butter & chocolate chips evenly over top. Press down firmly.

Bake 25 to 30 minutes or until lightly browned. Let cool then cut into bars. Store loosely covered at room temperature.