With wheat flour being a no no, I have been experimenting with a variety of alternative flours. Some have been so so. Some have been a real discovery. Almost all of them come from Bob's Red Mill. No, they do not pay me (Boo Hoo) but I really thought they deserved a plug.
Also, they are trying to create recipes for these unfamiliar grains. That they have almost, but not quite, got right. I'm working on it. In the meantime, if you go to their web site, you can find out where to buy these goodies.
I used the chestnut flour in my turkey dressing. The recipe is included in this web.
Keep enjoying the holidays.