1 c. butter, softened
1 c. peanut butter
1 lb. box confectioners' sugar
1 1/2 c. graham cracker crumbs
12 oz. chocolate chips

Blend butter and peanut butter in large bowl. Work in sugar and graham cracker crumbs. Put in foil lined 9 x 13 inch pan and press until even. Melt chocolate chips and spread over top. Put in refrigerator to chill.