Bacalhau à Gomes de Sá is a traditional Portuguese dish made primarily with salted cod, known as bacalhau. This recipe originated in the 19th century and is named after its creator, José Gomes de Sá, a merchant from the northern city of Porto. The dish typically includes ingredients like potatoes, onions, olives, and hard-boiled eggs, all baked together to create a flavorful and hearty meal. The preparation involves soaking the salted cod to remove excess salt, then shredding it and layering it with the other ingredients. It is often garnished with parsley and served warm, making it a popular choice for festive occasions and family gatherings in Portugal.