Makes about two 9 inch pizzas*
3 tablespoons brown sugar
1/4 cup oil (I used light olive oil)
3/4 cup warm water (somewhere between 105ºF and 115ºF)
1 tablespoon active dry yeast
1 tablespoon apple cider vinegar
3 egg whites
2 cups tapioca flour
1/2 cup brown rice flour
1/2 cup potato starch
2 teaspoons xanthan gum
3/4 teaspoon salt
1/2 teaspoon baking powder
Mix together the sugar, oil, water, yeast, and vinegar in a bowl, set aside. Beat the egg whites until peaks form (see photo above). Add the yeast mixture and beat on medium speed until combined. Add the remaining ingredients and beat on low speed until combined and then on high speed for about 1 minute. The dough will be like a thick batter.
Grease two 9 or 10 inch cake pans with at least a few tablespoons of oil (I used vegetable). The more grease you use, the more "fried" the bottom of your pizza will be, but it will also make it difficult to press the dough into the pans. Make sure you get your hands wet before pressing the dough in or else it will stick to your hands.
Let the dough rise for about 45 minutes or until it's about doubled (no need to be too precise). Top with desired toppings and bake at 350ºF for about 45 minutes or until the crust is browned.
*I had about 3/4 of a cup of leftover dough using 9 inch pans so I baked the extra in a mini loaf pan. If you like your crust a little thinner, you might be able to stretch it into three 8 inch pans. Let me know if you try it!