Bacalao a bras was one of my favorite dishes when I was living in Lisbon.
From wikipedia: ” is one of the most popular ways to prepare codfish in Portugal. It is made from shreds of salted cod (bacalhau), onions and thinly chopped (matchstick sized) fried potatoes in a bound of scrambled eggs. It is usually garnished with black olives and sprinkled with fresh parsley. It is a very common dish in cafes and restaurants as well as households through Portugal as a lunch option. The origin of the recipe is uncertain, but it is said to have originated in Bairro Alto, an old quarter of Lisbon. The noun “Brás” (or sometimes Braz) is supposedly the surname of its creator.”
Although most suggest to keep the bacalao in water for at least 24hr I usually do it for at least 48 hours. I change the water 2-3 times/day.