Jappa-jiru is a traditional local soup from the Tsugaru region of Aomori Prefecture in northern Japan. The name comes from the Tsugaru dialect word “jappa,” meaning something rough, miscellaneous, or leftover. In this dish, it refers to the parts of a fish that remain after the main fillets have been removed, such as the head, bones with meat still attached, and internal organs.
In other words, jappa-jiru is a Japanese-style fish head and bone soup, traditionally prepared to make full use of the fish rather than wasting any edible part.
Cod and salmon are the main fish used to prepare jappa-jiru. Among them, cod is especially popular. The rich flavors of the cod liver and milt combine beautifully with the miso-based broth, creating a deep and savory taste that is particularly satisfying during the cold winter months.
In the Tsugaru region, jappa-jiru has long been enjoyed as a practical home-style dish that makes use of parts of the fish that might otherwise be discarded. This tradition reflects the Japanese culinary philosophy of using ingredients as completely as possible.
Cod has traditionally held a particularly important place in winter food culture. It was regarded as a special fish for year-end and New Year meals, known locally as toshi-tori-zakana, or a fish eaten to mark the passing of the year. Cod was therefore considered an essential ingredient during the New Year season.
The importance of cod during this period was so great that the expression “Tara Shogatsu,” meaning “Cod New Year,” was once used in the region. In the past, families sometimes purchased an entire large cod and dragged it home along snowy roads. After the edible meat had been removed, the remaining head, bones, and other parts were simmered with vegetables to make jappa-jiru.
This warm and nourishing soup was especially valuable during Aomori’s harsh winters. It was easy to prepare in large quantities, filling, and packed with flavor and nutrients.
Main traditional area: Tsugaru region, Aomori Prefecture
Main ingredients: Cod, daikon radish, carrots, green onions, and miso
Jappa-jiru was not only an everyday family dish but also a food closely associated with the region’s fishing communities. During the winter fishing season, it was enjoyed as a hearty meal for fishermen returning from the sea.
When a fishing trip resulted in a large catch, women waiting on shore would prepare jappa-jiru and serve it to the fishermen. The sight of a large pot of hot fish soup being prepared after a successful catch became part of the traditional winter food culture of Tsugaru.
For local people, therefore, jappa-jiru represents more than just a bowl of soup. It reflects the history of fishing, family cooking, seasonal traditions, and the resourceful food culture that developed in northern Japan.
Traditional preparation begins with a whole cod. The head is split lengthwise, the backbone is cut into manageable pieces, and the internal organs are carefully cleaned. These parts are then simmered together with vegetables in a large pot.
Daikon radish and green onions are considered essential ingredients, while the other ingredients can vary depending on the household. Carrots, tofu, and other vegetables may also be added according to local or family preferences.
One of the distinctive features of jappa-jiru is the use of the cod liver. Once the other ingredients have cooked, the liver is dissolved into the soup, giving the broth an exceptionally rich and savory flavor.
If fresh cod milt is available, it may also be added. The delicate texture of the milt and the richness of the liver create an especially luxurious version of this otherwise simple traditional dish.
Many traditional versions are seasoned primarily with Tsugaru-style miso. The miso adds a deep, salty and savory character that pairs particularly well with the rich flavor of cod.
Although miso-based jappa-jiru is common, salt-seasoned versions can also be found. The exact flavor and ingredients may differ from one household or restaurant to another, making each bowl a little different.
There is an interesting difference between homemade jappa-jiru and versions served at restaurants.
In traditional home cooking, the main fillet of the fish is often not added to the soup. Instead, the dish is prepared using the head, bones, liver, milt, and other parts of the fish, allowing the broth itself to become the focus.
Restaurant versions, on the other hand, often include pieces of fish meat as well. This makes the soup more substantial and allows visitors to enjoy the texture of the cod as well as the rich broth.
For travelers visiting Aomori, jappa-jiru is an excellent way to experience the traditional flavors and winter food culture of the Tsugaru region. The combination of fresh local fish, seasonal vegetables, and rich miso creates a warming dish that is deeply connected to the area’s history and everyday life.
Jappa-jiru is a simple dish, but its story reveals much about life in northern Japan. It developed from the practical idea of making full use of a valuable catch, while its rich flavor and warming qualities made it particularly suited to the cold climate of Aomori.
Today, jappa-jiru remains one of the traditional dishes associated with Tsugaru. When visiting Aomori in winter, trying a bowl of this hearty soup offers more than a taste of local cuisine—it provides an opportunity to experience the seasonal traditions, fishing heritage, and food culture of Tsugaru.