Tapioca Starch (Best Option)
1 tablespoon per 1 tablespoon cornstarchTapioca starch is a fine powder extracted from cassava root that thickens quickly and produces a clear, shiny sauce, making it ideal for stir-fries. It gelatinizes at a similar temperature to cornstarch, ensuring the sauce thickens rapidly without cloudiness.
For best results, dissolve tapioca starch in cold water before adding it to the stir-fry to prevent clumping. Avoid prolonged cooking after adding it, as excessive heat can cause the sauce to thin out.
Compared to cornstarch, tapioca starch yields a slightly more elastic texture and a very glossy finish, enhancing the visual appeal of stir-fry sauces.