Cookbook:Powdered Sugar

Powdered sugar is a type of highly refined, finely powdered sugar. It is also known as confectioners' sugar and icing sugar.

In North America, powdered sugar usually contains about 5% cornstarch to prevent clumping. This can have a thickening effect in recipes that are heated.

Powdered sugar can also be made at home by mixing 1 part cornstarch with 20 parts sugar.