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.
Video
Notes
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).