Simple Super Fudge
["12 oz. pkg. semi-sweet chocolate chips", "6 oz. pkg. semi-sweet chocolate chips", "1 can sweetened condensed milk (Borden's Eagle Brand)", "1 Tbsp. peanut butter", "1 tsp. vanilla", "raisins, walnuts, or pecans (optional)"]
["Use a double boiler; heat chocolate chips until melted.", "Add can of condensed milk and vanilla.", "(Also peanut butter if desired.)", "Add nuts.", "Pour into a lightly buttered 8-inch or 9-inch square pan.", "Cool for 1 or more hours and then cut into squares."]
["semi-sweet chocolate chips", "semi-sweet chocolate chips", "condensed milk", "peanut butter", "vanilla", "raisins"]