Minute Fudge Frosting
["1 oz. chocolate, cut fine", "1 c. sugar", "1/3 c. milk", "1/4 c. shortening", "1/4 tsp. salt", "1 tsp. vanilla"]
["Bring to a boil, stirring.", "Boil gently 1 minute.", "Beat until lukewarm.", "Add vanilla; beat and spread.", "Covers top of 2 layers. If more frosting is desired, double recipe and cook 4 minutes."]
["chocolate", "sugar", "milk", "shortening", "salt", "vanilla"]