Fudge by Betty Fisk   4 ½ cups sugar 1 can evaporated milk ½ lb. butter 1 packages semi sweet chocolate bits 1 8 oz. jar marshmallow cream 1 tbsp. vanilla 2 cups chopped nuts (if desired)   Combine sugar, milk and butter in heavy saucepan. Place over moderate heat, stir until mixture begins to boil. Cook for 8 minutes, then removed from heat and stir in the chocolate bit, marshmallow crème, vanilla and nuts. Pour into a well- buttered shallow pan and chill until firm. Makes about 5 lbs of fudge.   For a full Halloween spin on this …