Though it’s an age-old method for preservation and flavor enhancement all over the world, the smoking of meat, fish, and cheese is not a notable tradition in southern Europe. In Portugal, in the old days, salt curing was more common – particularly for the national staple, cod. However, the presence of smoking traditions in the north, particularly around the Minho river, indicates the possibility that the Vikings’ favorite method for cooking fish may have reached all the way to the northeastern Iberian peninsula.