Icing is a sweet, creamy topping used to decorate and enhance the flavor of cakes, cookies, and other baked goods. It is typically made from a mixture of powdered sugar, butter, and liquid, such as milk or water. Icing can be spread or piped onto desserts and comes in various types, including buttercream, royal icing, and fondant. Icing serves both aesthetic and functional purposes. It adds visual appeal to desserts, making them more attractive for celebrations like birthdays and weddings. Additionally, icing can help to seal in moisture, keeping baked goods fresh and flavorful for a longer period.