Bacalhau à Gomes de Sá is a classic Portuguese dish that originated in Porto. It is made with salted codfish, potatoes, onions, garlic, olives, and eggs. The codfish is first soaked to remove the salt, then cooked with the other ingredients to create a flavorful and comforting dish. It is often served as a main course and pairs well with a glass of Vinho Verde, a light and refreshing Portuguese wine.