1 pkg. graham crackers, crushed
1 c. peanut butter
1 box powdered sugar (approximately 4 c.)
1 c. butter
1 (12 oz.) pkg. chocolate chips

Combine graham crackers, peanut butter, powdered sugar and butter; mix thoroughly. Put into 9x12 inch pan or cookie sheet. Spread chocolate chips evenly on top. Bake at 375 degrees for 3 minutes. Freeze for 15 minutes. Remove from freezer and cut into squares.