Janssons frestelse

Jansson's temptation ) is a traditional Swedish casserole made of potatoes, onions, pickled sprats, bread crumbs and cream. It is commonly included in a Swedish julbord (Christmas smörgåsbord), and the Easter påskbuffé, which is lighter than a traditional julbord. The dish is also common in Finland where it is known as janssoninkiusaus. The potatoes are cut into thin strips and layered in a roasting tin, alternating with the sprats and chopped onions in between. Salt and pepper is put over each layer, then cream is added so that it almost fills the tin. It is finally baked in an oven at 200 °C (392 °F) for about one hour. The recipe is often mistranslated into English, with anchovies being substituted for sprats. This is because sprats (Sprattus sprattus) pickled in sugar, salt and spices have been known in Sweden as ansjovis since the middle of the 19th century, while true anchovies (Engraulis encrasicolus) are sold in Sweden as sardeller (sardelles). Also, small herrings (Clupea harengus) may be used instead of sprats.

Source: Wikipedia