Peanut Butter Fudge
["1 lb. box powdered sugar", "4 Tbsp. peanut butter", "1 tsp. butter, melted", "1/4 c. milk", "1 tsp. vanilla"]
["Mix ingredients and pour into a 9 x 13-inch cake pan. Refrigerate and cut into squares."]
["powdered sugar", "peanut butter", "butter", "milk", "vanilla"]