Chef Takumi
Chili-Grated Daikon (もみじおろし, Momiji Oroshi)
A white daikon, a red chili, and a grater. Momiji oroshi looks like a small flourish, but it brings clean heat, fresh bite, and autumn color to the table.
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Ago Dashi (あごだし, grilled flying fish stock)
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Ago dashi is quiet luxury: roasted flying fish, konbu, and patient water. Steep it slowly and you get a clear stock that tastes sweet, clean, and full without heaviness.
Sauces & Condiments
Japanese
Make Ahead
New Years
Special Occasion
10 min
Active Time
25 min cook•8 hr 35 min total
YieldAbout 4 cups
Ago dashi begins with a fish that has already met the fire. Dried flying fish, roasted until tawny and fragrant, gives a stock sweeter and rounder than katsuo dashi, with a clean finish that suits New Year clear soup and a fine bowl of udon. It sounds like a special-occasion stock because it is. That doesn't make it difficult.
The one detail that decides it is restraint. Yaki-ago, grilled dried flying fish, needs time in cold water so its flavor opens before heat tightens it. Bring it up slowly with konbu, then stop before the kelp boils. Boil konbu and it turns the broth faintly bitter and slick; boil the fish hard and the stock grows cloudy and harsh. We are coaxing, not extracting by force. There is a difference, and the pot knows it.
Good ago dashi should be pale gold, clear, and quietly sweet, not smoky in a loud way. Use whole grilled ago if you can find it, break it open, remove the bitter innards, and let the water do the honest work. This is honmono made reachable: one good ingredient, good water, and enough patience to keep from bullying either.
Ago is a regional name for flying fish used especially in western Japan and Kyushu, where dried grilled flying fish, yaki-ago, became a prized stock ingredient in places such as Nagasaki and the Gotō Islands. The Gotō Islands are also known for Gotō udon, whose broth is traditionally built on ago dashi for its sweet, clear depth. In parts of Kyushu, ago dashi is closely tied to zōni, the New Year soup whose stock and contents vary sharply from region to region.
The technique, the tradition, and the story behind every dish.
Discover Culinary ExplorerIngredients
yaki-ago (grilled dried flying fish)
Quantity
4 whole fish (about 35g total)
heads, gills, and dark innards removed
konbu (dried kelp)
Quantity
1 piece (about 10g)
cold water
Quantity
5 cups
sake (optional)
Quantity
1 tablespoon
| Ingredient | Quantity |
|---|---|
| yaki-ago (grilled dried flying fish)heads, gills, and dark innards removed | 4 whole fish (about 35g total) |
| konbu (dried kelp) | 1 piece (about 10g) |
| cold water | 5 cups |
| sake (optional) | 1 tablespoon |
Equipment Needed
- •Medium pot
- •Fine-mesh strainer lined with clean cloth or sturdy paper towel
- •Covered container for overnight soaking
Instructions
- 1
Prepare the ago
Break each grilled flying fish in half and remove the gills and any dark, bitter innards. Leave the bones and skin. They carry flavor, and the stock will be strained. If the fish smell cleanly roasted and sweet, you're ready. If they smell stale or oily, change the dish. Nothing hidden.
- 2
Soak overnight
Put the prepared ago, konbu, and cold water in a pot or covered container. Soak in the refrigerator for 6 to 8 hours, or overnight. Cold soaking gives the dried fish time to open gently, so the broth becomes rounded before heat is ever asked to help.
If you have only 30 minutes, make another dashi. Ago gives its best flavor slowly, and rushing it makes a thinner stock. - 3
Warm it slowly
Set the pot over low heat and bring the liquid up slowly, 15 to 20 minutes. Pull out the konbu when small bubbles begin to climb the sides and the water trembles, before it boils. This protects the clean edge of the stock; boiled konbu gives bitterness and a slippery texture you did not ask for.
- 4
Steep the fish
Keep the liquid just below a boil for 8 to 10 minutes, then turn off the heat. Add the sake if using, and let the ago settle for 5 minutes. A hard boil shakes fine particles from the fish and clouds the broth, while quiet heat draws out sweetness and a roasted fragrance.
- 5
Strain gently
Strain through a fine-mesh strainer lined with cloth or sturdy paper towel. Let it drip on its own. Don't press the fish, because pressing drives bitter, muddy flavors into the clear stock. The finished dashi should be pale gold, fragrant, and clean.
- 6
Use or store
Use the ago dashi as the base for zōni, osuimono, udon broth, chawanmushi, or a light simmered dish. Season only after the stock is finished, usually with salt, usukuchi shōyu, or a little mirin depending on the dish. The dashi is the foundation, not the whole seasoning.
Chef Tips
- •Buy whole yaki-ago when you can, not powdered stock. The whole fish lets you remove the bitter parts and control the steeping, which is why the broth stays clean.
- •If your ago is only dried, not grilled, toast it briefly in a dry pan until fragrant before soaking. Say plainly what it is: a sensible stand-in, not the same rounded Kyushu flavor as true yaki-ago.
- •Use soft-tasting water if your tap water is very hard or chlorinated. Dashi is mostly water, which sounds obvious until a pot of careful stock tastes like the sink.
- •Do not season this before straining. Salt and soy belong to the final dish, where you can judge balance. Stock first, seasoning second.
Advance Preparation
- •The ago and konbu can soak overnight in the refrigerator, which is the best way to make this stock without standing over it.
- •Finished ago dashi keeps 2 days refrigerated. Reheat gently and avoid a rolling boil so the clean fragrance stays intact.
- •Freeze extra dashi in small portions for up to 1 month. Use it for soup or udon broth, not for a dish where fresh aroma is the whole point.
Frequently Asked Questions
Nutrition Information
1 serving (about 240g)
Calories
10 calories
Total Fat
0 g
Saturated Fat
0 g
Trans Fat
0 g
Unsaturated Fat
0 g
Cholesterol
2 mg
Sodium
115 mg
Total Carbohydrates
1 g
Dietary Fiber
0 g
Sugars
0 g
Protein
1 g
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