For the Pizza: 1.Begin by combining the sourdough starter, water, yeast, salt, and sugar in a large mixing bowl. Mix until well combined. Add flour and 1/3 cup of olive oil to the mixture and fold with a spatula until well combined. Add flour and 1/3 cup of olive oil to the mixture and fold with a spatula until thoroughly combined.

Once rested, preheat the oven to 550ºF (280ºC) Pour some of the Olive Oil (from the additional 6 tbsp) into each of the 9x13 cast iron pans and spread it evenly across the bottom. Divide the risen dough into 3 equal parts and place each part into a prepared cast iron pan.

Press and stretch the dough to cover the pan evenly.

Bake for 15-17 minutes or until the crust is golden brown and the cheese is melted and bubbly.