It is part of þorramatur, a selection of various traditional Icelandic food that is served as a buffet, particularly at the Þorrablót mid-winter festival.
The pagan sacrifice of Þorrablót disappeared with the Christianization of Iceland, but in the 19th century, a midwinter festival called Þorrablót was introduced in Romantic nationalism, and is still popular in contemporary Iceland, since the 1960s associated with a selection of traditional food, called Þorramatur.