Preheat oven to 500-550 degrees, preferably with a pizza stone on bottom rack. Remove other racks. Caramelize the onions: In a 12-inch sauté pan, heat 2 tablespoons olive oil over medium-low heat.

Leave to cool. Divide the dough into 4 equal pieces and roll each piece out into a thin circle to form your pizza base. Carefully remove the hot baking trays from the oven and lay the pizza bases ...