Bob's Red Mill Gluten Free 1-to-1 Baking Flour, 22 oz Bag is a blend of gluten free flours, starches, and xanthan gum. It allows you to transform traditional cookies, cakes, brownies, muffins, and other baked goods into gluten free treats. No need to throw out those delicious recipes! Just replace the wheat flour with this easy-to-use flour blend. This flour is designed for quick breads and not recommended for use in yeast recipes.