No Fail Marshmallow Fudge

4 c sugar
1 cube butter or margarine
¼ tsp. salt
l large can [12 oz] evaporated milk

Stir until dissolved, cook 5 minutes. (8 minutes at high altitude.) Add l lb miniature marshmallows and stir well, then add 1 (12-ounce) package of chocolate chips. Stir until dissolved, add 1 tsp vanilla and 1 cup chopped nuts. Pour into buttered dish. [My mom uses a 13”x 9” pan.]