Sicilian pizza is made with a thick, spongy dough that is made from a mixture of flour, water, yeast, and olive oil that is allowed to ferment and rise. The dough is pressed into a well-oiled square baking pan and then topped with a sauce made from onions sautéed in olive oil, chopped anchovies, tomatoes, and spices like oregano and crushed red pepper. The sauce is covered with bread crumbs and grated caciocavallo cheese and then baked in a hot oven. The spongy dough will soak up the olive oil at the bottom of the pan and create a crispy, charred bottom, while the middle will remain soft and spongy.