How to make miso soup: the daily Japanese ritual

Most Japanese people drink miso soup every day, and many have been doing so since childhood. The dish is so present in daily life that the question of how to make it well is less about recipes than about understanding a few principles that allow improvisation. Once you know what dashi is and how miso behaves, the rest of the dish adjusts itself around whatever ingredients are available.

Start with dashi: the foundation that cannot be skipped

Dashi is the reason miso soup tastes profound despite having almost no ingredients. It is a Japanese stock, but not in the Western sense - it is not simmered for hours. The simplest version, awase dashi, takes under fifteen minutes and requires only two things: dried kombu seaweed and katsuobushi (bonito flakes).

Soak a piece of kombu in cold water for 30 minutes or up to overnight. Bring to just below boiling over medium heat - you should see small bubbles forming on the base of the pot. Remove the kombu at this point. Add a generous handful of katsuobushi, remove from the heat and let steep for three minutes. Strain through a fine cloth or sieve. The result is clean, light and carries an umami depth that no stock cube can replicate.

This dashi can be stored in the refrigerator for three days and used for miso soup, sauces, braised vegetables and anything else that needs a liquid foundation. It is worth making in double quantities.

Choosing miso: three types, three purposes

White miso (shiro) is fermented for weeks rather than months, producing a mild, slightly sweet flavour. It suits delicate ingredients - silken tofu, clams, spring vegetables. Red miso (aka) is fermented for up to two years and has an intense, salty, complex character that works well with robust ingredients: daikon, pork, root vegetables. Mixed miso (awase) combines both and is the default choice for everyday cooking.

The rule that matters most: never let miso boil after it has been added to the broth. Temperatures above 60 degrees Celsius destroy the live bacteria that give miso its nutritional value and dull its flavour. Add miso at the end, off the heat or over very low heat, dissolved first in a small amount of warm broth.

Ingredient combinations worth building a rotation from

The classic: silken tofu and wakame seaweed with spring onion. Clean, light and ready in under five minutes. For depth: shiitake mushrooms and tofu with red miso. For winter: daikon and aburaage (fried tofu skin) with mixed miso. For the sea: littleneck clams in the shell, opened in the broth, finished with white miso and a drop of sake. Explore our miso soup tools and tofu accessories.

Serving

Miso soup is served in a small, deep bowl - traditionally lacquered, always lidded if possible. The lid retains heat and intensifies the first aroma when it is lifted. Browse our bowls collection and use a quality saucepan for making the broth.

Miso soup belongs alongside ochazuke, natto and tsukemono as part of a complete Japanese breakfast or light meal.

Read next

• Ochazuke: the most comforting two-minute Japanese meal
• Tsukemono: Japan's ancient art of pickling vegetables, the third element of a Japanese breakfast
• How to make ramen at home, where the same dashi becomes something much bigger