The Barese onion calzone is a traditional dish of Apulian cuisine, a symbol of the simplicity and goodness of local products. This calzone, with a rich and tasty filling, combines the sweetness of stewed onions with the strong taste of black olives, giving life to a perfect combination of flavors. Its preparation requires a soft and fragrant dough, which encloses a rich and aromatic filling, usually enriched with oregano and, sometimes, cherry tomatoes. Baking in the oven makes the calzone golden and crispy on the outside, while the inside remains soft and tasty. The Barese onion calzone is a versatile dish, which can be enjoyed as an appetizer, a main course or street food, and is prepared on special occasions or as comfort food, capable of conquering anyone with its genuine taste and rustic simplicity. The authentic version in the ovens of Turi.