Chikuzen (Fukuoka prefecture), Japan — regional preparation style named for the historical province; served nationally as osechi ryori and everyday nimono
Chikuzenni (also called tataki gobo or nishime — regional names for the same preparation style from Chikuzen, the historical name for the area around modern Fukuoka city) is a style of nimono (simmered preparation) that brings together chicken and multiple root vegetables in a single pot — a braise that exemplifies the Japanese approach to umami-multiplying through multiple complementary ingredients cooking together. The classic chikuzenni ingredients: chicken thigh (bone-in for better flavour), renkon (lotus root, important for its texture and visual beauty of the cross-section holes), gobo (burdock root), konnyaku (konjac, for chewy textural contrast), satoimo (taro, for starchy richness), carrots (for colour and sweetness), shiitake (for deep umami), and occasionally bamboo shoots. Each ingredient is cut in specific ways — renkon sliced to show its holes, gobo in irregular chunks, konnyaku torn rather than cut (torn surfaces absorb more flavour). The key technique is the sequential addition of ingredients based on cooking time requirements and a specific wok-frying step before simmering — all the chicken and vegetables are stir-fried briefly in sesame oil before adding the dashi-soy-mirin-sake simmering liquid. This preliminary frying step creates Maillard development on each surface and seals in some moisture, which significantly deepens the final simmered flavour compared to direct simmering.
Chikuzenni has a deeply satisfying, multi-layered savouriness — the chicken and vegetables have exchanged flavours with the dashi-soy-mirin simmering liquid, each component flavoured throughout and contributing to the overall braise, creating the complete, rounded flavour of Japanese nimono at its finest.
Stir-frying before simmering creates flavour depth impossible from simmering alone — the Maillard reaction on the surfaces of chicken, lotus root, and gobo adds complexity. Torn rather than cut konnyaku has more surface area for flavour absorption and a more rustic, textural eating character. The dashi:soy:mirin:sake ratio approximately 4:1:1:1 for chikuzenni — slightly stronger than basic nimono because the multiple ingredients dilute it. Otoshibuta (drop lid) keeps all ingredients submerged and ensures even braising.
Gobo preparation: scrub the skin with the back of a knife (not peel — the skin contains flavour), cut into irregular chunks, and soak in acidulated water for 10 minutes to prevent browning. Renkon: peel, slice 7–8mm thick, and soak in acidulated water to preserve white colour. For maximum flavour integration: make chikuzenni the day before serving — overnight refrigeration allows the vegetables and chicken to absorb the simmering liquid fully. Reheat gently to serve. The dish is outstanding cold (as part of osechi or in a bento box) as well as hot.
Skipping the stir-fry step and simmering everything directly — produces a flatter, less complex final dish. Adding all ingredients simultaneously — firmer vegetables (gobo, renkon) require longer cooking than tender ones (satoimo) and should be added earlier. Insufficient simmering time — chikuzenni requires 30–40 minutes to fully develop flavour integration.
The Japanese Kitchen — Hiroko Shimbo