Tapioca Flour, also known as tapioca starch, is ground to a powdery fine granulation from the dried roots of the cassava plant. It is a starchy and slightly sweet flour that is especially good for thickening soups, sauces, dips, pie fillings and puddings. Tapioca Flour is also an excellent ingredient for gluten-free baking, as it lends a springy texture, promotes browning and makes crispy crusts.