P
Japanese · Yamagata, Tohoku
Yamagata Imoni Taro Stew Autumn Tradition
Imoni (芋煮, taro simmering) is Yamagata Prefecture's most beloved communal autumn tradition — outdoor festivals where large groups gather by rivers to cook giant iron pot stews containing satoimo (taro root), beef or pork, konjac, and negi. The Yamagata imoni festival (August-November) is one of Japan's most distinctive regional food events: groups of 20-30 people share a large pot cooked over an open fire by a river. The Yamagata-style (Murayama region) uses beef with soy-based broth; the Okitama and Shonai regions use pork with miso-based broth — creating regional debates. The satoimo taro cooks until nearly falling apart, absorbing the broth deeply.
I
The Market List
The benchmark for each ingredient, and who stocks it near you. Tap a stockist to go straight to the product.
800 g
satoimo (Japanese taro root)
small, round variety; scrubbed
Not yet stocked in British Columbia
300 g
beef
thinly sliced (Yamagata Murayama style)
Your own market
200 g
konjac (konnyaku)
torn by hand into irregular pieces
Not yet stocked in British Columbia
2
negi (Japanese long onion)
cut into 3 cm lengths
Not yet stocked in British Columbia
For the soy-mirin broth (Murayama style)
1.2 L
dashi or water
Your own market
80 ml
soy sauce
60 ml
mirin
Not yet stocked in British Columbia
1 tsp
salt
to finish
Your own market
Each tap is counted, so the stockist sees the demand Provenance sends them.
II
The Method
1
Peel the satoimo. Rub each tuber with salt and rinse under cold water to reduce surface sliminess, or blanch briefly in boiling water and peel while warm. Cut any larger pieces to roughly equal size so all cook evenly. Work close to cooking time — pre-peeled taro discolours and loses its characteristic texture. The exterior should feel clean and slightly tacky, not slimy.
2
Bring the dashi or water to a simmer in a heavy pot. Add soy sauce and mirin. Introduce the satoimo and konjac. Maintain a steady, gentle simmer — not a rolling boil, which clouds the broth and breaks the taro prematurely.
3
After 45 minutes of simmering, add the beef. The broth should remain a clear, amber-brown. Skim any foam or fat that rises. Add the negi in the final 10 minutes of cooking.
4
Continue simmering for a total of 60 to 90 minutes from the point the taro entered the pot. This is where the dish lives or dies: the satoimo must be completely, yielding-soft — press a piece against the side of the pot with a spoon and it should offer no resistance and begin to collapse at its edges, having absorbed the broth deeply. Half-cooked taro carries an unpleasant, mealy texture that cannot be corrected at the table.
5
Taste the broth and adjust salt. Ladle into bowls ensuring each portion receives taro, konjac, beef, and negi. If broth remains after serving, it is traditional to cook udon or soba noodles directly in the pot as a shime finish.
From the canon — Buckwheat soba — 100% buckwheat noodles, as opposed to the more common 80:20 buckwheat-wheat blend — is the only form of soba that is naturally gluten-free. Soba Noodles (100% Buckwheat — Naturally Gluten-Free) →
III
Quality Hierarchy
01
Reserve — Small, freshly harvested autumn satoimo from a Tohoku or specialist Japanese supplier; thinly sliced wagyu or high-grade Japanese beef; traditionally prepared konjac block torn by hand.
02
Estate — Fresh satoimo sourced from a Japanese grocer in season (August–November); good-quality beef ribeye or chuck, sliced thin; konjac block rather than pre-formed pieces.
03
Market — Fresh satoimo where available, substituted with the freshest small taro to hand; supermarket beef stir-fry slices; standard konjac block.
04
House — Vacuum-packed or frozen taro; any thinly sliced beef; pre-cut konjac pieces. The dish remains wholesome but loses the creamy, broth-saturated character that defines Yamagata imoni.
IV
Sensory Tests
◇Touch. A piece of satoimo pressed against the pot wall with a spoon offers no resistance and begins to collapse — the cook's definitive signal that the starch has fully cooked through and the broth has been absorbed.
◇Sight. The broth remains a translucent amber-brown; excessive clouding signals the heat is too high or the taro has begun to break down prematurely.
◇Smell. After 30 minutes the pot should carry a clean, round umami scent of soy and taro without any raw starch note — raw-starch smell indicates the taro needs more time.
◇Sight. The negi has softened and turned translucent at its edges without dissolving — the signal that it was added at the correct late stage.
◇Where it lives or dies. The satoimo must simmer a full 60 to 90 minutes until it yields entirely to the spoon and collapses at its edges — taro that is even slightly undercooked carries a mealy, unpleasant texture that no adjustment can remedy.
Pillar V
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VI
What to Pour
The pairing
Nikka From The Barrel
Nikka Whisky — Miyagikyo Distillery · Miyagikyo — Nikka Distillery
Not yet stocked in British Columbia
Whisky
From British Columbia
Wine
Without alcohol
GT's Synergy Organic Kombucha — Gingerade
Not yet stocked in British Columbia
Non-alcoholic
Why each one works is part of membership — Enter · from $49 a year →
The whole pairingPillar VII
Origin and lineage are part of membership.
Where the dish comes from and how it came to be — on every recipe.
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