When I first started cooking gluten-free five years ago, I tried a bunch of different pre-made gluten-free flour blends, but I was constantly frustrated by how small the boxes or bags were. SO expensive and SO small. Somehow I discovered my now favorite gluten-free blogger Silvana Nardone. I highly recommend her cookbooks. Her recipes were among the first that taught me that gluten-free baking can taste good, so good that no one will know it's gluten-free. She cooks and bakes both gluten-free and dairy-free. I used her flour blend for a long time, and then, along came Thomas Kellar's Cup4Cup gluten-free flour blend. Like Silvana's flour, it works, but OMG is it expensive!!