<P> Powdered sugar, also called confectioners' sugar, icing sugar, and icing cake, is a finely ground sugar produced by milling 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, powdered sugar can also be made by processing ordinary granulated sugar in a coffee grinder, or by crushing it by hand in a mortar and pestle . </P> <P> Powdered sugar is utilized in industrial food production when a quick - dissolving sugar is required . Home cooks use it principally to make icing or frosting and other cake decorations . It is often dusted onto baked goods to add a subtle sweetness and delicate decoration . </P>

Is confectionary sugar the same as powdered sugar