All natural. From only the finest ingredients. Includes cake & glaze. Producing America's purest, finest flour has been King Arthur's primary focus since 1790. Bakers know that great results in the kitchen start with great flour, flour, that's never been bleached or bromated: King Arthur. Homemade, Naturally: We source top-quality ingredient and put centuries of King Arthur baking expertise into our assortment of premium gourmet all-natural mixes. Our bakers spend countless hours testing, tweaking, tasting, and re-testing; we want these mixed to be the best thing you'll ever bake. Because, after all-there's no place like homemade - naturally.