I'm trying to make a yeast-free, no-gluten pizza dough for a friend who basically can eat neither, but loves pizza. The last try included water, rice flour, olive oil, salt, baking powder and guar gum, and although it was better than previous attempts (the dough held together after baking, and didn't turn into a giant crispy cracker) it was still not chewy and crisp as a traditional pizza would be. I'm not expecting a result that perfectly mimics traditional recipes (where gluten and yeast are involved), but would like to know if anyone has tried other flours and yeast replacements that can create a stretchier dough that will result in a crispy yet chewy dough?
I've tried making pizza crust w Garbanzo bean flour (Besan or Gram flour) with some success. Starting w a recipe similar to this: Chick Pea Tortillas. Leave the fried onions in, and add some olive oil. Fry until nicely browned, and use as crust for pizza. First time I tried, I left the batter too thick, and pizza was overly bready, almost pancakish. Up'd the water on second try and result was crispier, but too flimsy. Perhaps an egg. and some spicing? Haven't tried adding baking powder to the thin batter, but it seems there might be a workable recipe in there somewhere.
Yeast definitely adds a lot of the classic "pizza dough" flavor, so you'll be missing that. However, you can still get some rise in the dough using baking powder, salt, and oil (2 teaspoons baking powder, 1 teaspoon salt, and 1/4 cup oil to roughly 2 cups of "flour" in your recipe). It sounds like you already tried that route, though.
But you also need the gluten free part, which is tricky. Have you tried a cornstarch and rice flour recipe yet?
Here's one I like...http://www.celiac.com/articles/744/1/Yeast-free-Pizza-Crust-Gluten-Free/Page1.html. Sounds weird, but it tastes good.
Here's another...http://www.food.com/recipe/quick-bread-gluten-free-pizza-crust-280734. Hope this helps!! :-)
I found that an equal amount of baking soda and lemon juice create a yeast like affect in dough, but you don't have to let it sit.
For example, I was making some gluten free yeast free bread a couple of days ago, and the recipe I was following called for 1 tablespoon of yeast,(or a packet). I subbed 1tbs lemon juice and 1tbs baking soda, and it turned out beautifully. I don't really eat pizza, so I can't help in that respect, but it might be worth a try!(: