Fudge Sauce
["1/4 c. butter", "2 sq. unsweetened chocolate", "1/8 tsp. salt", "1 1/2 c. sugar", "1 c. less 2 Tbsp. evaporated milk", "1 tsp. vanilla"]
["Heat the butter and chocolate in double boiler over simmering water until melted.", "Stir in salt, then sugar in 4 or 5 portions being sure to blend in sugar thoroughly after each portion.", "The mixture becomes very thick, dry and grainy.", "Now stir in milk very slowly, then cook 5 or 6 minutes longer until slightly thickened, stirring often.", "Remove from heat. Stir in vanilla.", "Pour into glass jars with tight fitting lids. Cover and cool, then store in refrigerator."]
["butter", "unsweetened chocolate", "salt", "sugar", "milk", "vanilla"]