Powdered sugar is a type of sweetener made by grinding granulated sugar into a fine powder. It is also known as confectioner's sugar or icing sugar and is commonly used to sweeten baked goods, such as cakes, cookies, and pastries. Powdered sugar has a finer texture than regular sugar, which makes it ideal for dusting over desserts to give them a smooth, glossy finish. It can also be used in recipes that require a sweetener with a fine texture, like whipped cream or meringue.