Pour sugar and the cornstarch into a high-powered blender.
Blend on high until light and fluffy (about 30 seconds). Remove the sugar from the blender, and store in an air-tight container for later use.
To make your own powdered sugar, simply measure out half the amount of granulated sugar of your desired final weight, e.g. if you need 1 cup of powdered sugar, use ½ a cup of granulated. Then, simply blend until it has reached a fine, powdery consistency (this should only take a minute or so).Calories are estimated per serving. **** When printing the recipe, please unselect the camera so that the pictures are NOT printed with the recipe (if preferred).