This dish is a potato gratin made with pickled anchovies and named after a Swedish opera singer. No, wait — it’s made with another fish, called
sprats, and the name was made up by a woman and the chef she hired for a society dinner, who decided to name an impromptu dish after a
popular film. Consensus seems to be that the original recipe called for sprats, but the Swedish word for that, “anjovis” was mistranslated as
“anchovies” by English-speaking cooks; a search for the recipe these days will include anchovies, sprats or small herrings pretty interchangeably.
An easy enough explanation, and far less confusing than the matter of how the dish got its name. Either way, “Jansson’s temptation” has
become a Christmas favorite for Swedes and amateur Swedish cooks around the world. Image: Flickr, Stefan Engstrom