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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.

Potatoes had reached Japan on Dutch ships in the Keicho era, around 1600, and onions spread as a crop, chiefly in Hokkaido, during the Meiji years. Under a long custom of avoiding animal flesh, beef only began to reach ordinary tables after the ban on eating meat was lifted in 1872. By the late Meiji period all three could go into the same pot.

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. No record ties it to a single birthplace. In the navy, a 1938 cooking textbook includes a "sweet braise" (amani) of beef, konnyaku, potato, and onion cooked with sesame oil, sugar, and soy sauce. Some see similar braises growing up in parallel in homes and cheap eateries as well, and the dish eventually put down roots as everyday home cooking.

The word "nikujaga" appears in print considerably later than the dish itself. The name is said to have settled through izakaya and the media between the mid-1960s and the mid-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's 1889 regulations for training ships' cooks, issued before Togo's posting, are said to already include stew. If so, 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. This origin story is a tradition made up after the fact.

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 potatoes and onions already grown in Japan and the sweet-savory soy-and-sugar braising method. A record of a close relative exists. The Naval Accounting School's 1938 Textbook of Naval Catering Management lists a "sweet braise" (amani) of raw beef, konnyaku, potato, and onion cooked with sesame oil, sugar, and soy sauce, the ingredients added to the pot in turn and finished in thirty-four minutes. The book does not call it nikujaga and says nothing about the name or where the dish came from. Even so, by 1938 a braise close to nikujaga was part of the menus taught to navy cooks. For an earlier example, an article by Asano Yosuke tracing the Kure birthplace claim, published on the food site Meshi-tsu, points to a sweet meat stew in the 1904 Jiji Shinpo piece "A Day's Meals on a Warship."

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. Yet the 1938 textbook had already listed a close relative, under the name amani. The first appearance of the name cannot be read as the moment of the dish's birth. Nor does any record credit the dish to a single person. Where, and by whose hand, the first pot was made remains unknown.