1 box powdered sugar
1 1/2 c. graham cracker crumbs
1 1/2 c. peanut butter
2 sticks butter
1 pkg. chocolate chips (12 oz.)

Mix together sugar, cracker crumbs, peanut butter and melted butter. Mix with dough hooks or hands. Put in 9 x 13 inch pan. Melt chocolate chips and spread on top. Refrigerate 30 minutes before cutting.