Preheat your oven to 400 degrees F (or if you’re using a pizza stone or the skillet method, follow
these directions). Cover the dough with the fontina cheese, then layer on the leeks and the pork. Add the cheddar on top evenly. Bake for 30 to 35 minutes or until the cheese is bubbly and golden. Drizzle the pizza with BBQ sauce before or after slicing and serve.