Cake Icing
["2 c. sugar", "1/4 c. cocoa", "1/4 tsp. salt", "2/3 c. sweet milk", "1/2 c. vegetable shortening"]
["Boil fast for 2 minutes, stirring constantly.", "Remove from heat and add 1 teaspoon vanilla.", "Beat until creamy."]
["sugar", "cocoa", "salt", "sweet milk", "vegetable shortening"]