Making Dashi: The Foundation of Simmered Flavor
This broth relies on the tension between the ocean-depth of dried kelp and the smokey, cured intensity of the bonito. It is the quickest way to bring clarity and depth to soups, braises, and rice dishes.
Watch the temperature like a hawk.
If you boil the bonito flakes, the broth will turn bitter and cloudy; keep the heat low and focused.
- medium saucepan
- fine mesh strainer
- cheesecloth or kitchen paper towel
What goes in.
- 4 cupswater
- 1 piece (4-inch)dried kombu
- 1.5 cupskatsuobushi (bonito flakes)
The simmer threshold
The goal is to extract the savory compounds without boiling the proteins. Keep the water below the point of bubbling to maintain a bright, clean profile.
The method.
Soak the kombu
Place the water and kombu in the saucepan. Let it sit for at least 15 minutes to hydrate the kelp before applying any heat.
Bring to a gentle heat
Turn the heat to medium-low. Watch for small bubbles forming along the edges of the pot. Just before it reaches a rolling boil, pull the kombu out and discard it.
Add the bonito
Turn off the heat completely and stir in the bonito flakes. Let them steep for 2 to 3 minutes until they sink to the bottom of the pot.
Strain
Line your strainer with a piece of cheesecloth or a clean paper towel. Pour the liquid through gently. Do not press down on the flakes, or you will cloud the broth.
Other turns to take.
Niban Dashi
Take the spent flakes and kombu, add 2 cups of fresh water, and simmer for 10 minutes to extract a second, earthier broth suitable for miso soups.
When it doesn't go to plan.
Wipe the kombu with a damp cloth before using, but don't wash off the white powdery substance; that is the source of the flavor.
Store finished dashi in a glass jar in the refrigerator for up to three days.
If you have extra bonito, toast them lightly in a dry pan for 30 seconds before steeping for a more intense, smokey aroma.
The ones that keep coming up.
Can I reuse the bonito flakes?
Yes, you can simmer them a second time for a stronger, darker broth, though it loses the delicate brightness of the first infusion.
Why did my broth turn cloudy?
Cloudiness happens if the water boils too hard or if you squeeze the flakes during straining. Keep your motions gentle.
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