Definition of 'optimum'. optimum (ÉptÉªmÉm ) or optimal. The optimum or optimal level or state of something is the best level or state that it could achieve. Aim to do some physical activity three times a week for optimum health. ...regions in which optimal conditions for farming can be created.
Use Tapioca Flour. Also know as tapioca starch, it's a great substitute. You'll want to use 2 tablespoons for every 1 tablespoon of cornstarch. Use Rice Flour. Rice flour thickens up like regular flour so use the same proportion: 3 tablespoons for every 1 tablespoon of cornstarch.
What can I substitute for cornstarch? Cornstarch is used to thicken liquids in a variety of recipes such as sauces, gravies, pies, puddings, and stir-fries. It can be replaced with flour, arrowroot, potato starch, tapioca, and even instant mashed potato granules. The ingredient you are most likely to have on hand, of course, is flour, so we'll start with that. When you want 1 cup of liquid to be fairly thick, it takes 1 tablespoon of cornstarch.