I think I've found the base of one. I'm playing with it. It's based on this one, sort of. Maybe. A little. Well, that one and the more biscuit style pizza crust on the back of the gluten free Bisquick box.
I've cut it down significantly, since I'm the only one in the house that can't eat real pizza. I've taken it down from 2 c flour to 1/2 c. And I'm using Bob's Red Mill 1 to 1 Baking Flour.
Following the other recipe, though, had a heavy, doughy crust. Really heavy. Like, break the floor if you drop it heavy. I talked to my sister, who's a pretty gifted baker, and she suggested adding baking soda. Asked me about how much flour I was using, and suggested half a teaspoon.
But now, I need to play with other proportions.
Because baking soda makes it taste salty. And I am still working on finding the right amount of salt.
At the moment, what I've got is this:
1/2 c gluten free flour
1/2 t baking soda
1 tbsp olive oil
1 tsp Italian herb blend
about 1/4 c water, give or take
It's easiest to mix this with your hands. Because you've got to be able to feel the texture of the dough: too sticky, and you need more flour; too crumbly/dry, and you need more liquid. Getting the dough to stick to itself actually works best if you sort of knead it in your mixing bowl. Then you sort of shape it into a ball, and roll it out on your pizza pan (if you can--it's easiest if you can get a flat pan or stone instead of a pan with a lip). Or, you can roll it out between sheets of waxed paper. Roll it THIN, too.
Oil the top, or it won't brown, and it will absorb the sauce. Hell, it tries anyway. Then bake it at 425 for about 5 minutes. Pull it out, top it, then put it back for about 5-8 more minutes, or until the cheese is browned. If you're feeling adventurous, slide it off the pan/stone onto the bare rack for that last bit of baking.
It's still crumbly. But it's better than most of the gluten free crusts and pizzas I've tried. And it's a hell of a lot cheaper to do it that way than to get the frozen Udi's crusts (2 for $6), or any of the frozen gluten free pizzas (one half-naked one for $6). And a giant FUCKING hell of a lot cheaper than getting a gluten free pizza at any place that actually makes/serves them.*
I'm pretty happy with this recipe. But I'm going to keep playing with it until I get it as close to right as pizza crust substitute can get.
*One place locally charges the same for a 10" gluten free pizza as they do a medium hand-tossed crust. The other charges as much as a medium deep dish pizza. And you're also trusting that the kitchen is keeping your pizza away from the ones that will bring gut pain.