The crossword solution for the term DECORATE WITH FROSTING is ICE, which stands for 'Icing'. Icing is a type of sweet, creamy topping that is used to decorate cakes, cupcakes, and other desserts. It is usually made with butter, sugar, and flavoring, and can be colored or flavored to suit the occasion. Icing is often used to add a decorative touch to cakes and other desserts, making them look more attractive and appealing.