An indispensable ingredient in baking, Frontier® Cream of Tartar acts as a leavening agent in cakes, quick breads and souffles when combined with baking soda and water. An essential ingredient in Snickerdoodle cookies, it aids in stiffening egg whites — just add a pinch of cream of tartar while beating — preventing sugar syrups from crystallizing and reducing discoloration of boiled vegetables. Our bulk cream of tartar is kosher certified and non-irradiated.