Take white granulated sugar and blend it in a high-powdered blender or food processor on high for about 30 seconds or until it has turned into a fine powder.
Then, sift the homemade powdered sugar to remove any remaining sugar crystals
Optionally, blend corn starch along with sugar for a few seconds. Corn starch is not mandatory, however, it is an anti-caking agent, meaning it helps the DIY powdered sugar to remain dry and free-flowing
Use your homemade powdered sugar according to the recipe