Powdered sugar, also called
confectioner's sugar or
icing sugar, is a finely ground
sugar made by milling normal granulated sugar into a powdered state. It usually contains a small amount of
anti-caking agent to prevent clumping and improve flow. Although most often produced in a factory, it can also be made by putting normal sugar in a
coffee grinder, or crushing it by hand in a
mortar and pestle. In industrial food production, it is used where a quick dissolving sugar is required. Domestically, it is principally used to make
icing or
frosting and other
cake decorations. It is often lightly dusted onto baked goods to add a light sweetness and subtle decoration.