1 c. butter
1 3/4 c. graham cracker crumbs
1 c. peanut butter
2 1/3 c. confectioners' sugar
2 c. (12 oz.) milk chocolate chips

Melt butter in saucepan. Add graham cracker crumbs, peanut butter and powdered sugar. Mix together. Pat in greased 9"x13" pan. Melt chocolate chips and pour over peanut butter mixture. Chill.

Let bars stand for 30 minutes out of refrigerator before cutting.