Black Walnut Fudge 3 cups granulated sugar 2/3 cup evaporated milk 3/4 cup margarine 1/2 teaspoon black walnut extract 1 1/2 cups Marshmallow Crème 1/2 cup walnuts 12 ounces chocolate chips Heat sugar, evaporated milk and margarine to boil and cook over medium heat to 238 degrees F. Beat in chocolate chips, Marshmallow Crème, walnuts and black walnut extract. Pour into a greased 13 x 9-inch dish.