The two most common types of doughnut are ring doughnuts, which are shaped like rings, and filled doughnuts, which are round and have jam, jelly, custard, whipped cream, or chocolate inside them. There are also "doughnut holes" or "munchkins" which come in the shape of small balls. Most doughnuts have an icing (also called a "frosting") made with icing sugar, water, and flavourings (such as chocolate). Some doughnuts are rolled in sweet foods such as sugar or shredded coconut.