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Miso Soup with Tofu and Wakame

By NicklausWritten

A four-bowl miso soup with tender tofu and rehydrated wakame, plus a clear choice between fish-based and vegetarian dashi.

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Recipe

Total time
About 20 minutes with prepared dashi
Method
Saucepan
Difficulty
Easy
Allergens
Soy · Fish may be present in dashi · Wheat or barley may be present in miso

4 small bowls

Allow roughly 20 minutes when the dashi is ready. Standard awase dashi contains dried bonito fish; use a verified kombu or kombu-shiitake dashi for a vegetarian soup. Miso varies in saltiness, so begin with less if needed and adjust before serving.

Equipment: Medium saucepan, small bowl, liquid measuring cup, measuring spoons, cutting board, knife, fine-mesh sieve or ladle, and spoon.

Ingredients

  • 4 cups prepared dashi, fish-based or verified vegetarian
  • 1 tablespoon dried wakame
  • 3 to 4 tablespoons miso paste, to taste
  • 200 g soft or silken tofu, cut into small cubes
  • 1 scallion, trimmed and thinly sliced

Method

  1. Rehydrate the wakame

    Cover the dried wakame with cool water in the small bowl. When the pieces have expanded and softened, drain them well. They grow substantially, so do not add more simply because the dry tablespoon looks small.

    Convert a measurement for this step

  2. Warm the dashi

    Bring the dashi to a gentle simmer over medium heat, then lower the heat. Do not let the saucepan boil hard.

    Convert a measurement for this step

  3. Dissolve the miso

    Put 3 tablespoons miso in the sieve or ladle. Hold it partly in the hot dashi and stir in spoonfuls of broth until the paste dissolves into the pan. Taste carefully; dissolve in the final tablespoon only if the soup needs it. Keep the heat low and avoid a hard boil.

    Convert a measurement for this step

  4. Add tofu and wakame

    Slide in the tofu and drained wakame. Heat gently until the tofu is hot throughout and the soup is steaming, moving the pieces as little as possible so the tofu stays intact. Turn off the burner before the soup boils hard.

    Convert a measurement for this step

  5. Finish each bowl

    Divide the soup among four small bowls and scatter over the sliced scallion. Serve promptly.

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Watercolor illustration of pale miso soup with tofu cubes, dark green wakame and sliced scallions in a ceramic bowl.
Miso soup with tofu, wakame and scallions. Serving illustration.

Miso soup is a small bowl with several decisions hidden inside it. The stock determines whether the soup contains fish. The miso determines much of the salt and character. Dried wakame looks sparse before soaking, while delicate tofu asks for very little stirring.

This source-based recipe follows the proportions and sequence in Namiko Hirasawa Chen’s classic tofu-and-wakame miso soup. Her separate vegan miso soup verifies kombu dashi as a fish-free path. No physical kitchen test is claimed.

Decide what is in the stock

Awase dashi commonly combines kombu with katsuobushi, dried bonito flakes, so it contains fish. Instant granules and packets can also contain fish even when the front says only “dashi.” Read the ingredient list. For a vegetarian bowl, use a dashi verified to contain only plant ingredients, such as kombu or kombu with dried shiitake.

The miso buying guide covers color, grain, salt and storage. Miso can include soy, rice, barley, or other grains, so the package remains the authority for allergens. Begin with three tablespoons here, then decide whether the fourth belongs in your pot.

Let wakame expand outside the soup

One dry tablespoon becomes much more once hydrated. Soaking it separately makes that expansion visible and lets you drain the soaking water. It also keeps the wakame from sitting in the hot pot longer than needed.

Once the miso is in, keep the heat gentle. Dissolving it in a ladle or sieve prevents dense lumps without forcing a spoon through the tofu. Add the cubes last, warm them through, and stop before a hard boil.

Store a leftover bowl promptly

Divide extra soup into shallow covered containers and refrigerate it within two hours. FoodSafety.gov’s cold-storage chart gives soups and stews three to four days in a refrigerator at 40°F (4°C) or below. Reheat leftovers to 165°F (74°C), following the safe minimum temperature chart. Stir gently so the tofu does not disappear into the broth.

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