I usually use Bob's Red Mill 1-1 Baking Flour, but for this recipe I used King Arthur Measure for Measure Gluten-Free Flour. I like both equally, and I did not see any clear difference between them. I like to use the gluten-free flours that don't involve adding anything else to them, so you can sub them in for your regular baking flour. Some gluten-free flours require you to add additional items like xanthan gum, which can be a little pricey.