Yield: This recipe makes 2 large pizzas (about 18 inches each), 1 extra-large pizza, or 3 small pizzas. Size your pizzas to fit your stone or baking equipment; an 18-inch pizza requires an 18-inch stone or larger.
Technique: Stretch the bottom crust as thin as you can without tearing it. A thin bottom crust prevents a dense, bready base and gives you a larger pizza; keep it well dusted with semola at every stage to prevent sticking to the surface, peel, or stone.
Storage: Shaped dough balls keep in the refrigerator for up to 3 days. For longer storage, freeze the shaped, unproofed dough balls for up to 2 months; thaw overnight in the refrigerator, then proof at room temperature for 2 to 3 hours before stretching.