Be the first to Write a Review Our mix turns out brownies that are so rich and chocolaty, you’ll be amazed they're 100% gluten-free. Developed for us by award-winning chef Thomas Keller, the mix is made with premium ingredients including Guittard cocoa, ensuring home-baked flavor with stir-and-bake ease. Inspired by the classic comfort foods served at Keller’s cozy restaurant Ad Hoc, this mix lets you enjoy the flavor of classic brownies without the gluten.