2 1/2 c. sugar
1/4 c. butter
1 (5 oz.) can evaporated milk
1 (7 1/2 oz.) jar marshmallow creme
3/4 tsp. salt (opt.)
3/4 tsp. vanilla
1 (12 oz.) pkg. semi-sweet chocolate pieces

Put the sugar, butter, evaporated milk, marshmallow creme and salt together in a large saucepan. Stir over low heat until blended. Turn heat up to medium so that the mixture boils slowly. Stir constantly for about 5 minutes. The mixture will get thicker. To make sure that it is done, drop a tiny amount in a cup of cool water. It will hold together if it is done and separate if it isn't. Keep stirring while you are experimenting. Remove from heat. Stir in chocolate and vanilla. Keep stirring until chocolate is melted. Pour quickly into a 9"x9" pan (buttered). Smooth to the sides of the pan. Rest your stirring arm and let the fudge cool.