Powdered sugar

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Confectioner's sugar
Confectioner's sugar

Powdered sugar, also known as confectioner's sugar or icing sugar throughout most of the Commonwealth, is a very finely ground form of sugar.

In industrial food production it is used where a quick dissolving sugar is required or as in domestic use principally to make icing or frosting, and other cake decorations. It is often lightly dusted onto a baked goods to add light sweetness and subtle decoration.

It is generally mixed with cornstarch or wheat flour, or calcium phosphate to improve its flowing ability and is not generally used to sweeten a beverage, but producers do make industrial grades available without additives.

Caster or Castor sugar is a larger particle size approximately half or less in size of granulated.