Bacalhau à Zé do Pipo (literally Bacalhau à la Zé do Pipo) is a common codfish (bacalhau) dish in Portugal. It is an oven baked dish, consisting in layers of bacalhau (previously boiled in milk), onion (or pickles), mashed potatoes and mayonnaise. Although mayonnaise is not traditionally used in Portuguese cuisine, this dish is considered typical. It is usually garnished with olives and/or peppers. The recipe originates from Porto and is named after its creator, Zé do Pipo, who owned a famous eatery in that city during the 1960s. He won a national gastronomic contest with this main course making many restaurants to adopt it in their menus and popularizing it through the country to this day.