Can icing be used to decorate a birthday cake?

Yes, icing is commonly used to decorate birthday cakes. Icing, also known as frosting, is a sweet, creamy mixture that is used to cover and decorate cakes, cupcakes, and other desserts. It adds flavor, color, and texture to the cake, and can be used to create various designs and patterns. There are different types of icings, such as buttercream, chocolate ganache, cream cheese frosting, and whipped cream, each with its own unique taste and texture.