Frosting is a thick and creamy topping commonly used on cakes and as a filling between layers. It provides a generous, fluffy coating for treats like cupcakes, bars, and layer cakes. Unlike icing, which has a thinner, glaze-like consistency, frosting is whipped and light, often made into buttercream. It pairs well with desserts like chocolate cake, vanilla cupcakes, chocolate biscuits, and brownies.