Icing (also know as frosting in American cuisine) is a sweet, often creamy glaze made of sugar with a liquid, such as water or milk, that is traditionally enriched with ingredients like butter, egg whites, cream cheese, or flavourings. It can be used to decorate and ice baked goods such as biscuits, brownies, cookies, cakes/cupcakes. However, when it is used between layers of cake, it is called filling. Vegan-friendly cake icing can be bought pre-made from brands such as Betty Croker and Dr Oetker but can also be made easily at home by beating together icing sugar, vegan butter and vanilla essence or other flavourings and sometimes plant-based milk, depending on the recipe.
Icing can be formed into shapes such as flowers and leaves using a pastry bag, usually on birthday and wedding cakes. Various food colourings and flavours (such as vanilla or lemon) is often added to icing mixtures to achieve desired colours and flavours. Sprinkles, edible spray glitters, edible ink designs and other decorations are often used on top of the icing to add to the aesthetics of baked goods.