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Nikujaga is a Japanese home dish of thinly sliced beef, potatoes, and onions simmered until sweet and savory in soy sauce and sugar. It took its recognizable shape in the late Meiji period, as blended Japanese-Western braises settled onto everyday tables across the country.

The dish cannot be traced back before Meiji, and the reason is the beef. Potatoes had reached Japan via Dutch ships as early as the Keicho era (around 1600), and onions were being grown, chiefly in Hokkaido, by the Meiji years. Beef alone stands apart. Under a long custom of avoiding animal flesh, beef only became a common food once the ban on eating meat was lifted in 1872. All three ingredients could meet in the same pot only after beef reached ordinary kitchens—in the late Meiji years.

The flavor rests on a sweet-savory braise built from soy sauce, sugar, and dashi. In folding foreign beef into an established braising method, nikujaga is one example of the blended Japanese-Western simmered dish. Nor did it belong to any single birthplace. Similar braises grew up in parallel in Meiji homes and cheap eateries, and as a sweetened stew in shipboard navy rations, before the dish put down roots as everyday home cooking.

The word "nikujaga" appears in print considerably later than the dish itself. The name settled through izakaya and the media in the 1970s and 1980s—a different moment from when the cooking itself came together.

Nikujaga carries a well-known origin story. Togo Heihachiro, having studied in Britain, is said to have wanted the beef stew he tasted there recreated at the naval bases in Maizuru and Kure; lacking wine and demiglace, his cooks reached for soy sauce and sugar, and nikujaga supposedly resulted. Passed down as a local specialty, the tale even became the banner of town-revival campaigns claiming to be its birthplace.

As history, the story has nothing to stand on. The navy already listed stew on its menus before Togo's posting, in the 1889 regulations for training ships' cooks. The very premise—a failed attempt by cooks who did not know stew—does not fit the dates. The path by which the tale spread can also be traced. It began with a 1988 television program, and in 1995 the "Maizuru Nikujaga Festival Committee" (headed by Shimizu Takao) promoted it as a Togo-linked anecdote for the sake of town revival. The naval historian Arima Kanjiro judged the story "about ninety percent wrong," and the naval-cuisine researcher Takamori Naoshi, finding nothing that could prove the Togo account, has traced how a television program and 1990s town-revival efforts grew the legend (sources: Takamori Naoshi, The Tale of Navy Nikujaga, Kojinsha 2006; Isurugi Tatsuhito, "The Truth About the Birthplace of Nikujaga," Yahoo! News Expert; "Nikujaga" on Wikipedia). This origin story is a tradition made up after the fact, and the record does not bear it out.

So where did nikujaga come from? One view names no inventor and sees it as a blended Japanese-Western braise that grew up on its own. When the lifting of the meat ban brought beef to ordinary people, it joined the native potatoes and onions and the sweet-savory soy-and-sugar braising method, and settled gradually as home and cheap-eatery fare. Records close to the period exist. Jiji Shinpo's 1904 "A Day's Meals on a Warship" mentions a sweet beef stew aboard ship, and the Naval Accounting School's 1938 Textbook of Naval Catering Management lists a "sweet braise" of beef, konnyaku, potato, and onion cooked with sugar and soy sauce. Neither records the invention of nikujaga itself, but both show that a dish close to it was already being cooked at the time.

Here the gap between name and dish matters. The earliest known appearance of the word "nikujaga" in print is said to be the spelling "niku-jaga" in a 1950 report on meal-ticket eateries in Shufu to Seikatsu (sources: "Who Named Nikujaga?" Gendai Business / Kodansha; Meshitsu). Yet the dish itself is already visible in the earlier records of 1904 and 1938. The name settled after the dish had come into being, so the first appearance of the name cannot be read as the moment of the dish's birth. Rather than crediting any single person, the better-grounded reading, for now, is that similar braises grew up across many tables and no one hand can be named as their author.