Pour 1 to 2 tablespoons of olive oil in the bottom of two 10-inch cast iron skillets or round cake pans (see note).
Place 1 ball of dough in each pan and turn to coat evenly with the oil.
Using a flat palm, press the dough around the pan, flattening it slightly and spreading oil around the entire bottom and edges of the pan.
Cover tightly with plastic wrap and let the dough sit at room temperature for 2 hours (at room temperatures above 75°F, the dough may require less time to rise; at temperatures below 65°F/18°C, it may require more time). After the first hour, adjust an oven rack to the middle position and preheat oven to 550°F (290°C).