Did you know powdered sugar has to have a binder? That binder is cornstarch. So.....since my family is corn-free, we decided we were going to have to make our own.
Take one cup organic sugar (we use florida crystals natural sugar) and one tablespoon potato or tapioca starch and place in your mac daddy blender. Blend until you reach the desired powder consistency. Viola. You've just made powdered sugar!