rollmops

The pug dog entered European fashionable life from China via Dutch East India Company traders in the 17th century. Its flat, rolled face and compact bulk made Mops in German a term of affectionate physical description, applied freely to fat, round, compressible objects. Berlin cooks in the early 19th century began rolling herring fillets around pickled gherkins and onions, and somebody noticed the finished roll resembled the short, fat dog closely enough to justify the name Rollmops by at least 1857.

The herring used is always a cured Baltic or North Sea fillet, soaked in vinegar brine with bay leaf, mustard seed, peppercorns, and sliced onion. A German recipe published in Praktisches Kochbuch by Henriette Davidis in 1845 describes the preparation with near-modern exactness. The rolled fillet is secured with a wooden cocktail pick and packed vertically in glass jars. It keeps for weeks without refrigeration, which made it an export commodity across European urban markets.

British soldiers encountered rollmops during and after World War I through German delicatessens in London, which remained open through much of the conflict serving the large German community. The fish became embedded in British food culture as a standard pub snack and a supposed remedy for hangovers, a use documented in British newspaper columns by the 1920s. The hangover attribution is plausible: the acid in the vinegar and the salt content both assist alcohol metabolism.

In Berlin, rollmops belonged to Imbiss street food culture from at least the 1870s. Vendors at railway stations and fish markets sold them from glass jars, eaten over paper. The Berliner tradition of standing at a stall and eating something sharp, fatty, and cold persisted into the 21st century at Nordsee outlets and traditional Fischhändler across the city. The pug dog name remained, though the dog itself long since gave way to the snack in popular recognition.