Peanut Butter Fudge
["1 box powdered sugar", "1 c. peanut butter (creamy)", "2 sticks butter or margarine, melted (1/2 lb.)", "2 Tbsp. cocoa"]
["Mix together and pour into ungreased pan.", "Cool.", "Cut into squares."]
["powdered sugar", "peanut butter", "butter", "cocoa"]