Citric Acid Free Dashi
There is something almost meditative about making a proper Japanese stock from scratch — just cold water, a piece of dried kelp, and a handful of smoky bonito flakes transforming into something deeply savory and complex. The result is a clean, golden broth with that unmistakable umami depth that forms the backbone of so many beloved Japanese dishes. For anyone avoiding citric acid, this recipe is a genuine gift, because it relies entirely on whole, minimally processed ingredients with no additives, preservatives, or hidden acids to worry about. The technique is gentle by design — kombu is coaxed slowly in cold water before the heat ever touches it, and the katsuobushi steeps off the heat to keep the flavor delicate and bright. Skipping the boil and resisting the urge to squeeze the strainer are the two small details that keep the stock silky and free of any bitterness. Use it as a base for miso soup, noodle broths, or simmered vegetables, and you will immediately understand why this humble stock is considered the foundation of Japanese cooking.
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Learn more →Ingredients
4 servings
- 4 ½ cups cold water
- 1 oz (about 15g) kombu
- 1 oz (about 30g) katsuobushi (bonito flakes)
Instructions
- 1
Combine the cold water and kombu in a medium saucepan. Let the kombu soak at room temperature for 30 minutes, until the water turns a pale straw-yellow and the kombu has softened and expanded slightly.
- 2
Place the saucepan over medium-low heat and warm slowly, uncovered, until the water reaches a bare simmer — small bubbles will begin to rise from the bottom of the pan, about 10 minutes. Do not let it reach a full boil; remove the kombu just before the first rolling bubbles appear, as boiling makes the stock bitter and slimy.
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