Cake decorations are adornments or embellishments that are placed on top of around cakes. Cake decorations can be made of edible material or food-safe plastics.
Fondant, also known as sugar paste or ready roll icing, exists in many different colors, and its initial form is soft and easy to handle. In this form, cake decorators are able to mold fondant into many different artistic expressions. Many of these expressions are also taught in professional cake decorating classes. Fondant is primarily used to cover cakes, but it is also used to create individual show pieces for cakes.
Royal icing is a sweet white icing made by whipping fresh egg whites (or powdered egg whites, meringue powder) with icing sugar. Royal icing produces well-defined icing edges and is ideal for piping intricate writing, borders, scrollwork and lacework on cakes. It dries very hard and preserves indefinitely if stored in a cool, dry place, but is susceptible to soften and wilt in high humidity.
Marzipan is often used for modeling cake decorations and as a base covering underneath fondant.
Gum paste, also known as florist paste, is an edible, brittle material that dries quickly and can be sculpted to make cake decorations such as flowers or molded designs.
After breakthroughs in nontoxic inks and printing materials in the early 1990s, it became possible to print images and photographs onto edible sheets for use on cakes. Originally introduced as a specialty service provided by bakeries, this technology can now be used by home consumers using specialized kits.