3/4 c. melted butter
2 c. graham crackers
1 (12 oz.) pkg. milk chocolate chips
1 1/2 c. peanut butter
2 c. powdered sugar

Melt butter in microwave. Add peanut butter, graham crackers and powdered sugar. Press evenly into ungreased 9 x 13-inch pan. Set aside. Melt chocolate chips until smooth. Spread evenly over mixture. Let stand until chocolate hardens. Cut into squares.