Reese Chocolate Squares (thing)

• 1/3 lb. graham crackers, crushed fine
• 1 1/2 cup peanut butter
• 1/2 lb confectioners sugar
• 1 1/3 sticks margarine
• 1 cup chocolate chips

Melt butter and add peanut butter. Mix in crumbs and sugar.
Put in 9x13 pan. Melt chips and spread on top of mixture. Chill.