Mug Cakes, Confetti Cake Mix With Vanilla Frosting, 4 Individual Pouches

Icing, or frosting, is a sweet, often creamy glaze made of sugar with a liquid, such as water or milk, that is often enriched with ingredients like butter, egg whites, cream cheese, or flavorings. It is used to cover or decorate baked goods, such as cakes or cookies. When it is used between layers of cake, it is called filling.