Kalakukko is a traditional dish of Finnish cuisine. It consists of a fish and salted pork pie (bacon or bacon) encased in a casing of unleavened dough, usually rye, which has undergone a long, slow baking process. Originating in the historical regions of Savo and Karelia, it spread so widely throughout the country during the 20th century that it could be considered Finland’s national dish. It is made from unleavened bread dough, usually rye bread with the possible addition of other flours, which is given an elongated shape similar to that of a meatloaf. Before being baked in the oven for a long time, it is stuffed and salted with fish and with the addition of pieces of pork or bacon. The crust protects the inside by prolonging its preservation after cooking and favours its transport and handling by acting as a sort of edible " edible food box".