Like cornstarch, it will make a transparent, glossy gravy, yet leaves behind no flavor of its own. Unfortunately, arrowroot-thickened gravy does not reheat well, so don’t use it if you plan on ...

Cornstarch is also virtually tasteless, and, when heated with any water, mostly transparent. Mixing cornstarch into foods like sauces and gravies is one of the ingredient’s most common uses—it ...