Corn free powdered sugar. 1 cup superfine sugar 1 tablespoon starch (tapioca/arr…

Corn free powdered sugar. 1 cup superfine sugar 1 tablespoon starch (tapioca/arrowroot/potato) Using a spice mill or clean coffee grinder, whir this mixture in batches until superfine like powdered sugar. The food processor doesn’t work for this, sorry, I tried!