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Noto Fish-Sauce Hot Pot (いしる鍋, Ishiru Nabe)

Noto Fish-Sauce Hot Pot (いしる鍋, Ishiru Nabe)

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Ishiru nabe is winter at the Noto shore: clear dashi, glistening seafood, sturdy vegetables, and a spoonful of fermented squid sauce doing quiet, serious work.

Soups & Stews
Japanese
Special Occasion
Comfort Food
One Pot
25 min
Active Time
30 min cook55 min total
Yield4 servings

Ishiru makes people nervous before they taste it. A fish sauce made from squid sounds forceful, and it can be, if you pour it in like soy sauce and walk away. Use it as we do in Noto, a little at a time, and it gives the pot a clean sea-depth that salt alone cannot manage.

The dish is not complicated. Make a clear dashi, season it lightly with sake and ishiru, then simmer seafood and winter vegetables in the order they need. The one detail that decides it is restraint: ishiru is seasoning, not soup base. Let the dashi carry the broth, and let the fish sauce darken the edge.

Choose seafood that looks glistening fresh and smells clean, not loud. Cod, squid, shrimp, clams, yellowtail, or local white fish all suit the pot when they are at their prime, shun. Add hakusai, leeks, daikon, mushrooms, and tofu, and leave each piece enough room to cook cleanly. Nothing hidden under sauce. The broth should taste like the coast after a cold wind has passed over it, not like a bottle tipped too boldly.

Ishiru is a fermented fish sauce of the Noto Peninsula in Ishikawa Prefecture, traditionally made from squid guts or whole sardines packed with salt and aged for months or longer. It is often described as older in local use than soy sauce in the region, and it remains tied to coastal preservation work where winter seafood and salt became seasoning as much as food. Ishiru nabe is one of its clearest uses: a communal hot pot that lets the sauce season broth, fish, and vegetables without hiding them.

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Ingredients

konbu (dried kelp)

Quantity

1 piece (about 10g)

cold water

Quantity

6 cups

katsuobushi (bonito flakes)

Quantity

20g

sake

Quantity

1/4 cup

ishiru (Noto fermented squid fish sauce)

Quantity

2 to 3 tablespoons

plus more to taste

usukuchi (light soy sauce) (optional)

Quantity

1 teaspoon

firm white fish such as cod

Quantity

300g

cut into large pieces

squid

Quantity

200g

cleaned and cut into rings

large shrimp

Quantity

8

peeled or shell-on

small clams

Quantity

8

scrubbed

hakusai (napa cabbage)

Quantity

1/4 head

cut into wide pieces

daikon

Quantity

1 small

peeled and thinly sliced

long negi or leek

Quantity

1

cut on the diagonal

shiitake mushrooms

Quantity

150g

stems trimmed

firm tofu

Quantity

1 block

drained and cut into large cubes

seri or mizuna

Quantity

1 small bunch

cut into 2-inch lengths

yuzu peel (optional)

Quantity

1 strip

cut into fine slivers

Equipment Needed

  • Donabe (Japanese clay pot), or a wide heavy pot
  • Fine-mesh strainer lined with a clean cloth
  • Tori-zara individual plates
  • Chirirenge soup spoons

Instructions

  1. 1

    Make the dashi

    Wipe the konbu with a damp cloth, but don't wash it. Put it in the cold water and bring it up slowly over low heat. Pull the konbu when the water trembles and small bubbles climb the sides, before it boils. Add the katsuobushi, take the pot off the heat, and leave it alone for three minutes. Strain through a cloth without squeezing, because squeezing presses heavy, oily flavors into the clear stock.

  2. 2

    Season the broth

    Pour the dashi into a donabe or wide heavy pot. Add the sake and 2 tablespoons of ishiru, then taste. It should be gently salty, clean, and deeper than plain dashi, but not sharp. Add the usukuchi only if the broth needs a rounder edge. Ishiru varies by maker, so tasting is not fussiness. It is the method.

  3. 3

    Prepare the seafood

    Pat the fish, squid, and shrimp dry, and check that the clams are tightly closed or close when tapped. If the fish smells strong, change the dish and cook something else. This pot has nothing to hide behind. Cut the fish into pieces large enough to hold together, because small pieces cloud the broth and overcook before the vegetables are ready.

  4. 4

    Start the vegetables

    Bring the seasoned broth to a quiet simmer. Add the daikon first and cook for about 6 minutes, until the edges begin to turn translucent. Add the hakusai stems, negi, shiitake, and tofu. These sturdier pieces go in before the seafood because they need time to soften, and the broth gathers sweetness from them as they cook.

  5. 5

    Add the seafood

    Nestle in the fish, squid, shrimp, clams, and the leafy hakusai tops. Keep the simmer gentle, just enough movement to cook everything through. Boil it hard and the fish tightens, the squid toughens, and the broth turns cloudy. Cover for 4 to 6 minutes, until the clams open, the shrimp turn pink, and the fish flakes when nudged.

  6. 6

    Finish and serve

    Taste the broth once more and add a few drops of ishiru if it needs salt and sea-depth. Scatter the seri or mizuna over the top and let it wilt for less than a minute, so the greens stay bright. Finish with yuzu peel if using. Carry the donabe to the table with individual tori-zara plates and chirirenge spoons, and serve from the pot while the surface stays glossy and clear.

Chef Tips

  • Buy the seafood first and build the pot around what is best that day. Cod in winter is excellent, but a glistening local white fish beats tired cod every time.
  • Ishiru is not interchangeable with Thai fish sauce in character or use. If you cannot find Noto ishiru, choose a Japanese shottsuru or ikanago shoyu and say plainly that the dish has changed.
  • Do not season the broth to full strength before the seafood goes in. Clams and fish add salt and depth as they cook, so leave a little room for them to speak.
  • A donabe holds heat gently and suits the table. A wide, heavy pot works, but keep the simmer quiet. Fierce boiling is how good seafood becomes an apology.

Advance Preparation

  • The dashi can be made one day ahead and kept refrigerated. Warm it gently before seasoning, and do not boil it hard.
  • Vegetables can be cut several hours ahead and kept covered in the refrigerator. Cut the seafood close to cooking so the surfaces stay clean.
  • Clams can be scrubbed ahead and kept cold under a damp towel. Discard any that remain open after a firm tap.

Frequently Asked Questions

Nutrition Information

1 serving (about 840g)

Calories
310 calories
Total Fat
6 g
Saturated Fat
1 g
Trans Fat
0 g
Unsaturated Fat
5 g
Cholesterol
230 mg
Sodium
1350 mg
Total Carbohydrates
15 g
Dietary Fiber
4 g
Sugars
5 g
Protein
44 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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