A cake without icing is called a Naked Cake.
Cakes that are served without any icing or with minimal amounts of icing are simply called a naked cake.
The naked cakes emphasize the layers of the cake itself, and they often are served with no icing or frosting or minimal amounts of icing or frosting.
Naked cakes with little to no icing on the sides allow the layers to show and be visible.
Naked cakes are popular and have gained in popularity for their natural and rustic look as well as their ability to showcase the flavors of the layers of the cake.
The term naked cake implies a lack of icing or frosting on the cake although some naked cakes have a light dusting of powdered sugar, drizzle of glaze or fresh fruit or flowers as decoration.
There are also some other types of cakes other than naked cakes that are not iced or frosted which included the sponge cake which is a cake that is light and airy and is made most often with eggs and sugar and an angel food cake which is a very light and airy cake that is made with egg whites, flour and sugar.