Yamagata Dashi
山形のだし
Yamagata's chopped summer relish of cucumber, eggplant, myoga and shiso — a cold, savory pile spooned over rice or tofu. Not stock; a knife-work dish.
By Japanese Cookbook Kitchen · May 4, 2026
基本- Prep
- 25 min
- Cook
- 0 min
- Serves
- 4
- Level
- Beginner
In Yamagata, midsummer is brutal — the Mogami basin traps heat between the mountains, and the old farmhouses had no way to cool a kitchen. Dashi is the snow country's answer to a summer with no appetite: a cold, sharp, herb-heavy relish of garden vegetables, chopped fine and eaten over rice when nothing hot will do. It grew out of Edo-period farm kitchens, where cucumber, eggplant and the pungent myoga and shiso all came in at once, and a cook needed a way to make plain rice go down in the heat. There is no cooking in it at all, which in a fireless August kitchen was exactly the appeal.
The name is the trap. This is not the kombu-and-katsuobushi stock every other recipe on this site leans on — call that awase dashi and keep the two straight in your head. Yamagata dashi is knife work: everything cut small and even, dressed with soy and mirin, rested until the vegetables give up a little liquid and a sliver of kombu binds it loosely together. Spoon it over hot rice and it turns a joyless summer bowl into something you actually want. That, more than any broth, is what the word was doing all along.
The whole dish is cut size. Keep everything to a rough 5 mm dice — small enough to spoon, big enough to keep its snap. Uniformity is the technique.
板前の一言 · A word from the kitchen
Ingredients材料
Serves 4
- 2Japanese cucumbers — the thin-skinned kind; if using Western cucumber, seed it first
- 1small Japanese eggplant (nasu) — salt-soaked to kill the raw bitterness; see step one
- 2myoga buds — the ginger-family flower bud; a pink pickled shallot is the nearest substitute, though it changes the dish
- 6shiso (perilla) leaves
- 1 knobfresh ginger
- 3 tbspsoy sauce
- 1 tbspmirin
- 1 tspdried kombu, cut to slivers (or a pinch of grated tororo kombu) — the one nod to actual dashi — it adds glutamate and a faint thread
- salt, for the eggplant
Method作り方
Step 1: Tame the eggplant
Dice the eggplant to 5 mm, submerge in lightly salted water for ten minutes, then squeeze dry. Raw nasu is astringent; the salt bath draws out the harshness and stops it browning.
Step 2: Cut everything small and even
Dice cucumber and eggplant, mince myoga, shiso and ginger. The dish is named for the way it all runs together, so keep the pieces uniform — knife discipline is the entire craft here.
Step 3: Dress and rest
Fold everything with soy sauce, mirin and the slivered kombu. Let it sit, covered, in the fridge for at least thirty minutes so the vegetables weep a little and the kombu turns the liquid faintly gluey — that bind is the point.
Step 4: Serve cold, over something plain
Spoon generously over hot rice, cold tofu, or soba. It keeps three days and gets better on day two, though the shiso fades — stir in a few fresh leaves before the second serving.
道具 · The tools
Equipment
Fine sieve / muslin
こし器For straining dashi clear and dusting flour — line it with muslin or paper for the cleanest stock.
Shop on Amazon →Grater (oroshigane)
おろし金Fine, wet grating for ginger, daikon oroshi, and fresh wasabi — a Western microplane is close.
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Questions from the kitchen
Why is it called dashi if it isn't stock?
Nobody is fully sure. The leading guess is that "dashi" here comes from the verb dasu, to bring out or serve — a thing you set out on the table — rather than from soup stock. It confuses every visitor to Yamagata, and the locals rather enjoy that.
Where does the sliminess come from, and is it wanted?
Yes, it's wanted. A restrained stickiness — from the kombu and sometimes a little grated okra or nagaimo — is what lets the relish cling to rice instead of sliding off. Go light; you want a thread, not glue.
Can I make it without myoga and shiso?
You can, but you lose the whole character. Those two herbs are what make it read as summer in Yamagata rather than as chopped salad. If you can find only one, keep the shiso.
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