Home-style
Ayu Uruka
Ayu uruka — fermented ayu (sweetfish) innards, salted and aged into a savory paste
Ayu (sweetfish) flesh or innards are minced with salt and left to ferment for about a week — an Oita salted delicacy said to have begun as a way to keep the clean river's seasonal catch; the innards-only version, nigauruka, carries a distinctive bitterness.
- Origin: Oita
- About 850 km west of Tokyo
What it's made of
Ayu-uruka is a fermented preparation of sweetfish caught in Oita's clear rivers, using the flesh and innards. The best-known version, made from innards alone, is called "niga-uruka" and is prized for its distinctive bitterness and astringency. Other versions use the flesh together with the innards, or the roe and milt, each with its own character. All share the deep, layered flavor typical of fermented food.
How it's made
Fresh sweetfish flesh and innards are minced with a knife, mixed with salt, and left to ferment for about a week, developing its distinctive flavor as fermentation proceeds. Stirring it with cedar chopsticks is said to encourage fermentation and produce a better result. It is eaten over hot rice, served as an accompaniment to sake, or used as a seasoning. Because sweetfish is only in season for part of the year, this has long been treasured as a valuable way to preserve it.
Why it took this shape
Oita is home to some 585 clear-flowing rivers, and sweetfish is said to have been prized as a vital protein source in the mountain areas along them. Uruka is said to have developed as a way to preserve this river fish, available only for a limited season, through fermentation so it could be enjoyed longer. As a fermented food it is also said to aid digestion, and it reportedly became something kept on hand for stomach trouble. It stands as a distillation of the resourcefulness that shaped life in the mountains.
Before you go
- How to shop at a supermarketHow to choose prepared foods, sashimi, and packaged sushi, when discount stickers tend to appear, region-only specialties, buying by weight, the checkout and bagging flow, and sampling etiquette at a local supermarket.
- Food for Obon and the harvest moon (tsukimi)A guide to the meat-free shojin ryori and somen served at Obon, and the tsukimi dango offered on the night of the harvest moon.
- At teishoku diners, shokudo, and machi-chukaA guide to the teishoku set-meal format, free rice refills, table placement, and paying at a shokudo-style diner.
Dishes in the same style
- Agonoko UmaniThe roe of egg-bearing flying fish, caught only in early summer, is simmered in stock and soy sauce as an Oki bar snack. Its large grains and dense, sticky texture are prized as a delicacy said to be scarcer even than the fish's flesh.
- Funa MisoCrucian carp is simmered slowly with soybeans for around five hours, then finished in a sauce of red miso and coarse sugar. A freshwater fish dish of the Kiso rivers' lower basin, made with fatty winter carp simmered until the bones soften through.
Ingredients and dishes from this land
Also from Oita
- Aji no MaruzushiA whole horse mackerel, cured in plum vinegar and opened flat, is wrapped around vinegared rice and rolled in red shiso leaf — a celebratory sushi from Saiki, painstaking to prepare, built on the rich mackerel landed from the Bungo Channel.
- AmimeshiKrill simmered sweet-savory in mirin, soy sauce, and ginger is folded into freshly steamed rice — a dish from the Usa, Nakatsu, and Bungotakada coast, where krill are hauled from the Buzen Sea tideflats each autumn and winter; a favorite of the northern Oita coast.
- Atama RyoriGills, jaw, and innards of a large fish like grouper are quickly parboiled along with the flesh and piled onto a single platter — a dish from inland Taketa, far from the sea, said to have grown from a wish to waste nothing of a rare catch, served with a citrus dipping sauce.
- Beppu ReimenThe dish's spread is traced to around 1950, when a cook repatriated from what had been Manchuria began making cold noodles in Beppu. Genso Arirang, founded that same year, is often named as the pioneering shop; the local style pairs a Japanese-style seafood stock with noodles made from buckwheat, wheat, and starch.
- Dango-jiruWheat dough kneaded and stretched into flat ribbons is simmered with root vegetables and shiitake in a barley-miso broth — an everyday Oita dish born of the prefecture's flour-based food culture, where poor rice land pushed wheat to the fore; the ribbons keep a firmer bite than udon.
- Gan-jiruA live mitten crab is ground shell and all, strained, and simmered into a broth seasoned with salt or soy sauce — a Usa dish in which the protein sets into soft curds as it heats, often gathered with mustard greens added to draw out more flavor.