Chocolate Icing
["2 c. sugar", "1/2 c. powdered sugar", "1/2 c. cocoa", "1/2 c. milk", "1 3/4 sticks butter", "10 large marshmallows"]
["Mix sugar and cocoa; add milk and melted butter.", "Boil 5 minutes; add marshmallows and beat well."]
["sugar", "powdered sugar", "cocoa", "milk", "butter", "marshmallows"]