Double Batch Fudge
["14 oz. Marshmallow Fluff", "6 c. sugar", "1 1/2 c. margarine", "1 1/3 c. evaporated milk", "24 oz. semi-sweet chocolate morsels", "2 tsp. vanilla", "2 c. chopped nuts (optional)"]
["Stir together margarine, sugar and milk in heavy 2 1/2 to 3-quart saucepan; bring to full boil, stirring constantly.", "Boil 5 minutes over medium heat, or until candy thermometer reaches 234\u00b0, stirring constantly to prevent scorching.", "Remove from heat. Gradually stir in chocolate until melted.", "Add remaining ingredients; mix until well blended.", "Pour into greased 13 x 9-inch (at least) pan.", "Cool at room temperature; cut into squares.", "Makes 6 to 8 pounds."]
["Marshmallow Fluff", "sugar", "margarine", "milk", "semi-sweet chocolate morsels", "vanilla", "nuts"]