Science Class Fudge
["2 Tbsp. butter or margarine", "1 tsp. salt", "1 2/3 c. sugar", "1 small can evaporated milk", "1 1/2 c. miniature marshmallows", "1 1/2 c. semi-sweet chocolate pieces", "1 tsp. vanilla"]
["Mix butter, salt, sugar and evaporated milk in saucepan.", "Cook on medium heat. After mixture comes to boil, continue cooking for 5 minutes, stirring constantly."]
["butter", "salt", "sugar", "milk", "marshmallows", "semi-sweet chocolate pieces", "vanilla"]