Otto's Naturals Cassava Flour is a Game-Changing, Single-Ingredient, Gluten-Free, Grain-Free, Nut-Free, Paleo flour with the taste and texture of wheat! It's also really easy to use: In most recipes either sub it in 1:1 by weight or, if your recipe calls for cups, just reduce flour volume by 25%. It's a whole food you can feel good about. You no longer have to sacrifice taste or texture for your health because Grain-Free Just Got Easy!