Several Greek desserts are finished off with confectioner's sugar, such as kourabiedes (Greek walnut sugar cookies), bougasta (lemon orange pie) and fanouropita (Greek cake for lost things). So what do you do if you find yourself without this crucial ingredient? You make your own! Homemade powdered sugar is quick and easy to put together and is simply made with sugar.
Whether you run out, or just need a cup or two, making confectioner's sugar, also known as "powdered sugar" and "icing sugar," is a simple matter in the blender.
This method can be used to make larger quantities, but it is a real time-saver for last-minute needs.
All you will need is a blender, measuring cup, sugar and cornstarch, if you choose to add. For each cup of confectioner's sugar put one cup of regular granulated sugar into the blender. Blend using the pulse method until the sugar turns to powder. This method works best in small quantities--1 to 2 cups at a time.
If you are making a small amount, you can use a coffee grinder, spice grinder or mini-food processor. Just be mindful that the sugar crystals can scratch plastic, so consider carefully before making the powdered sugar in a plastic blender or processor.
Cornstarch or other additives are used in commercial products; if the sugar's taste doesn't match what you need, try adding 1 to 1 1/4 tablespoons of cornstarch for each cup of sugar.