Fructose Free Dashi
This deeply savory Japanese stock is one of those foundational recipes that quietly transforms everything it touches — from miso soup to braised vegetables to delicate noodle broths. It's built on just three ingredients: cold water, kombu, and katsuobushi, making it a naturally clean, unfussy base with no hidden sugars or fruit-derived additives to worry about. For anyone managing fructose sensitivity, store-bought broths and flavor bases can be a minefield of onion powder, garlic, and sweeteners — this one sidesteps all of that entirely. The technique is all about patience and gentle heat: the kombu soaks slowly, the bonito flakes steep rather than boil, and nothing gets pressed or squeezed, which keeps the flavor clean and free of bitterness. What you end up with is a pale, golden liquid that tastes impossibly complex for something so simple — subtly oceanic, lightly smoky, and deeply umami. It keeps in the fridge for a few days or freezes beautifully, so making a batch means you always have a safe, flavorful cooking liquid on hand.
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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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