Urban Platter Potato Starch :
Potato starch is made from the dried starch component of peeled potatoes. It has no potato flavor so works well in most recipes.
As part of the starch component of a gluten free flour blend, potato starch lends a light, fluffy texture to baked goods. It is also a great thickener in gravies, sauces, and even in custards and puddings, which typically use cornstarch.
if you use potato starch as a thickener in a gravy or sauce, here’s a useful tip: Unlike cornstarch, a liquid thickened with potato starch should never be boiled. The potato starch loses its ability to thicken once boiled.