Fudge Sauce
["1 (14 1/2 oz.) can evaporated milk", "2 c. sugar", "4 oz. unsweetened chocolate", "1/4 c. butter", "1 tsp. vanilla", "1/2 tsp. salt"]
["Heat milk and sugar to rolling boil, stirring constantly. Boil and stir 1 minute.", "Add chocolate, stirring until melted. Beat over heat until smooth.", "(If sauce has a slightly curdled appearance, beat vigorously until creamy smooth.)", "Remove from heat; blend in butter, vanilla and salt."]
["milk", "sugar", "unsweetened chocolate", "butter", "vanilla", "salt"]