Making Proper Dashi
You are building the skeleton for soups, simmered vegetables, and sauces. Once you master this base, you stop needing heavy seasoning because the broth provides all the structural integrity the dish requires.
Patience is your primary ingredient.
The quality of your dashi depends entirely on the quality of your dried ingredients. Do not rush the steep; if the water doesn't have time to draw out the minerals from the kelp, the broth will taste like nothing more than hot water.
- medium saucepan
- fine-mesh strainer
- cheesecloth or paper coffee filter
What goes in.
- 4 cupscold filtered water
- 1 piece (approx. 4 inches)dried kombu
- 1.5 cupskatsuobushi (bonito flakes)
Respecting the Kelp
Remove the kombu the second you see small bubbles rising to the surface, just before a full boil. If the water boils with the kelp inside, the starch releases and ruins the clarity and flavor of the stock.
The method.
Soak
Place the water and kombu in the saucepan. Let it sit for at least 20 minutes. If you have time, leave it for an hour.
Heat
Turn the heat to medium-low. Watch the pot closely. When you see tiny bubbles forming on the kombu and the edges of the pot, lift the kombu out and discard it.
Infuse
Bring the water to a gentle simmer, then turn off the heat completely. Add the bonito flakes.
Steep
Let the flakes sink to the bottom on their own. This takes about 2 to 3 minutes. Do not stir.
Strain
Line your strainer with cheesecloth or a coffee filter. Pour the liquid through gently to catch every particle of flake.
Other turns to take.
Kombu Dashi
Omit the bonito flakes entirely. This is for vegetarian dishes or when you want the lightest possible mineral base.
Niban Dashi
Reuse the kombu and spent bonito flakes by simmering them in 2 cups of fresh water for 10 minutes. It is less intense but useful for daily home cooking.
When it doesn't go to plan.
Wipe the kombu with a dry cloth to remove grit, but leave the white powdery substance—that is mannitol, where much of the umami resides.
Store dashi in the refrigerator for up to three days, or freeze it in ice cube trays for quick additions to stir-fries or sauces.
Never squeeze the bonito flakes in the strainer; this forces out bitterness and clouds the broth.
The ones that keep coming up.
Can I use powdered dashi instead?
Powdered versions exist for convenience, but they often contain salt and MSG. Homemade dashi allows you to control the salt level and provides a cleaner finish.
Why is my dashi bitter?
Bitterness usually comes from leaving the bonito flakes in the water for too long or squeezing them during straining.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe