Alice'S Chocolate Frosting(Never Fail)  
["1 c. sugar", "1/4 c. milk", "1/4 c. cocoa", "1/4 c. butter"]
["Mix together and boil for 1 minute.", "Beat until ready to spread.", "Double recipe for 9 x 13-inch pan."]
["sugar", "milk", "cocoa", "butter"]