Gluten free flour substitute
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
If you're looking for a dependable gluten-free, all-purpose flour, I recommend the blend from Bob's Red Mill: http://www.bobsredmill...
It really depends on what you are cooking. Personally, if making a dessert (cookie, cake, that kind of thing) I find Bob's use of bean flours in their blend to produce too "beany" of a flavor that comes through. So, fine in most savory applications, but not my preference in sweet.
For sweet, you might try the new "Cup 4 cup" (I haven't tried it, as it has dairy -- whey), as I've heard good things about that. Otherwise, look for flour blends on the internet that don't use bean flours.
You can count the ingredients on one hand.
Simplest Homemade Doughnuts
12 Essential Italian Cookbooks
What's New in the Neighborhood
Turn Practically-Magic Cauliflower into a Week of Meals
The Hits Keep Coming