10 awesome ways to use cornstarch (that don't involve cooking) Gourmandize Staff, 07/28/2016 Gourmandize shares Share on Facebook Share on Twitter Pin it Share on WhatsApp Share on Google+ 8/10 Previous Next Ironing Starch A tablespoon of cornstarch diluted in a pint of water makes an excellent home-made starch! Simply place the mixture into a spray bottle and spray it onto fabrics before ironing. Crisp creases, here we come!