Kombu Cold-Steep Dashi
A mineral-clean vegan stock drawn from dried kelp and cold water alone — the purest expression of umami, extracted slowly without heat to preserve every delicate iodine note.
Ingredients
For 4 servings · tick what is ready
Use the scaled ingredient list. Steps and temperatures stay unchanged; use a larger pan or dish if needed. Seasonings to taste stay to taste.
How to make it
Gently wipe the kombu surface with a barely damp cloth to remove any grit. Do not rinse under running water — the white powdery bloom (mannitol) on the surface is natural MSG-adjacent glutamate and is essential to umami depth. Leave it intact.
Place the kombu in a clean container with the cold filtered water. Cover and refrigerate for a minimum of 6 hours, ideally overnight (up to 24 hours). Cold extraction pulls glutamic acid out slowly without the bitter sulfur compounds released by heat. Do not let it boil at any point during this step.
Remove the kombu (reserve it — it can be sliced and simmered in soy and mirin as a condiment). Strain the dashi through a fine-mesh sieve lined with cheesecloth or a coffee filter. Season lightly with salt only if using as a standalone broth. Use immediately or store refrigerated for up to 4 days.
About this recipe
By ForkRecipe Kitchen · Source: ForkRecipe / FoodML and contributors. Recipe content available under CC BY-SA 4.0.
Serving count is an estimate; check quantities in the source recipe.