1 c. butter, melted
1 c. peanut butter
2 c. graham cracker crumbs
3 c. powdered sugar
12 oz. chocolate chips

Mix cracker crumbs and sugar together. Add 1 cup melted butter. Mix well. Add peanut butter. Mix well. Spread in bottom of cookie sheet. Melt chips and spread evenly over peanut mixture. Refrigerate.