1 box sifted confectioners' sugar
1 1/2 c. graham cracker crumbs
1 1/2 c. peanut butter
2 sticks melted butter
12 oz. pkg. chocolate chips, melted

Stir sugar and crumbs together in large bowl. Melt peanut butter and butter. Pour over sugar mixture and blend. Press into a 9x13 inch pan. Top with melted chocolate. Place in refrigerator until hardened. Cut into squares.