
This deeply savory Japanese stock is built on just two ingredients β kombu seaweed and bonito flakes β which means there are no cured meats, processed additives, or preservatives hiding anywhere in the pot. That matters more than you might think, because many store-bought broths and soup bases sneak in ingredients that people trying to avoid nitrates and nitrites have to watch out for. Here, the flavor comes entirely from a slow, careful extraction process: the kombu soaks in cold water until it releases its gentle umami, and the katsuobushi steeps just long enough to add that signature smoky depth before being strained away. The technique is almost meditative β no rushing, no boiling the kombu, no squeezing the flakes β and the result is a crystal-clear, golden broth that tastes far more complex than its short ingredient list suggests. Use it as the base for miso soup, ramen, noodle broths, or any dish that needs a clean, savory backbone without any of the processed shortcuts.
Fig is a food discovery app that helps you find foods and recipes that fit your dietary needs. Whether you have food allergies, intolerances, or follow a specific diet, Fig makes it easy to eat with confidence.
Learn more β4 servings



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.
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 140β150Β°F (60β65Β°C) β just below a simmer. This should take about 10 minutes. Do not let the water boil.
Create a Fig account for step-by-step instructions, access to our full recipe library, and more!
