First, knead the dough. It's usually a generous amount of dough, so it's better to split it in half. Then, flour the dough thoroughly on each side.
Stretch the dough by pressing it with your fingertips. Then, flour a rolling pin and stretch the dough thin. Remember to make it as round as possible.
You can use a wide assortment of ingredients to fill a calzone. However, remember that the traditional calzone doesn't have marinara sauce inside. Start filling the calzone with shredded mozzarella to make a bed of cheese, and then add ricotta—season with black pepper, fresh basil leaves, and spinach. Then, top with mozzarella cheese to seal all the fillings inside the calzone.
Close the calzone folding the dough, and covering the fillings carefully. Press the border with your fingers and cut the excess with a pizza cutter.
Crimp the edges with the handle of a pizza cutter to get that pretty and authentic look.
Sprinkle cornmeal in a tray lined with parchment paper for a crispier and more genuine crust. Now, carefully transfer the calzone to the baking tray and brush the calzone with eggwash.
Put the calzone in the oven for 15 to 18 minutes, or until it's golden.