Boiled Chocolate Icing
["2/3 c. cocoa", "3 c. sugar", "1/8 tsp. salt", "1 1/2 c. milk", "4 1/2 tsp. butter", "1 tsp. vanilla"]
["Combine cocoa, sugar and salt.", "Add milk and bring to a boil, stirring often.", "Cook to 232\u00b0 or until a small amount forms a soft ball in cold water.", "Remove from heat and drop in butter.", "Cool to lukewarm.", "Add vanilla and beat until mixture thickens slightly. Spread on cake."]
["cocoa", "sugar", "salt", "milk", "butter", "vanilla"]