Set pizza stone or heavy baking sheet on lowest rack of oven, and preheat to 450°F.
Mix water, sugar, and yeast and let sit for 5 minutes, or until it looks foamy.
In electric mixer bowl, mix flour blend and salt. Add in egg, olive oil, vinegar, and yeast mixture.
Mix on low speed for 1 minute.
Using an oiled spatula, transfer the gluten-free pizza dough onto a piece of parchment paper. Using oiled hands, spread dough into a 10-12-inch round.
Bake for 8-10 minutes.
Add toppings and bake for an additional 8-10 minutes.
Enjoy hot.
