Brazil Nut Free Classic Dashi
This foundational Japanese broth is one of those quietly magical things that transforms everything it touches — from miso soup to noodle dishes to delicate simmered vegetables. The technique is all about patience and gentle heat, coaxing deep umami flavor from just two ingredients without ever letting the water reach a rolling boil. Scoring the kombu helps release its natural glutamates slowly, and steeping the bonito flakes off the heat keeps the broth clean and clear rather than murky or bitter. The result is a golden, subtly oceanic stock with a complexity that's hard to believe came together in under an hour. For anyone navigating tree nut allergies, this is a recipe where you can breathe easy — the ingredient list is short, whole, and completely free of any nut-based surprises. It keeps well in the fridge for a few days, so you can make a batch ahead and have a versatile, restaurant-quality base ready whenever you need it.
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Learn more →Ingredients
4 servings
- 4 cups cold water
- 1 oz (about 15–20 g) kombu
- 1 oz (about 1 packed cup) katsuobushi (bonito flakes)
Instructions
- 1
Use kitchen scissors or a knife to score the kombu with a few shallow cuts along its surface, then place it in a medium saucepan with the cold water. Let it soak for 30 minutes, until the kombu has softened and the water has taken on a faint golden tint.
- 2
Set the saucepan over medium-low heat and warm the kombu and water slowly, until small bubbles begin to form at the bottom of the pan and the water reaches about 140–150°F (60–65°C) — just below a simmer. This should take about 10 minutes. Do not let the water boil.
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