Recipe

Japanese-Inspired Miso Soup with Tofu and Wakame

Soft tofu, sliced mushrooms and tender wakame float in a savory miso-dashi broth, finished with scallions for a quick Japanese-inspired starter.

Japanese-Inspired Miso Soup with Tofu and Wakame
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Ingredients

  • 4 cups prepared unsalted or low-sodium dashi (960 ml), bonito-based or kombu-shiitake; prepare separately according to its directions
  • 250 g plain soft or medium tofu, drained and cut into 1/2-inch cubes
  • 100 g fresh shiitake mushrooms, tough stems removed, caps thinly sliced
  • 1 tablespoon dried wakame (3 g), plus cool water for soaking
  • 3 tablespoons white or yellow miso (48 g), or start with 2 tablespoons and add to taste
  • 2 scallions (30 g), trimmed and thinly sliced

Instructions

  1. Place the dried wakame in a small bowl with plenty of cool water and soak for about 5 minutes, or follow its package directions. It expands considerably. Drain, rinse if directed by the package, and cut any large pieces into spoon-size lengths.
  2. Remove tough mushroom stems and slice the caps thinly. Drain the tofu without squeezing it hard, then cut carefully into small cubes. Separate the scallion whites from the greener tops if you want the whites softened in the broth.
  3. Pour the prepared dashi into a saucepan and bring to a gentle simmer. If making it from a concentrate or powder, prepare the full measured amount according to the package rather than adding an arbitrary quantity of concentrate.
  4. Add the mushrooms and scallion whites and simmer for about 5 minutes, or until the mushrooms are tender. Keep the heat moderate; rapid boiling is unnecessary.
  5. Slide the tofu and drained wakame into the broth and warm gently for about 2 minutes, following any additional heating directions on the tofu package. Stir with a light lifting motion so the tofu cubes do not break apart.
  6. Turn off the heat. Place 2 tablespoons of the miso in a small bowl, ladle in a little hot broth and whisk until smooth. Stir this mixture back into the saucepan, then taste and dissolve some or all of the remaining tablespoon the same way if needed.
  7. If the soup needs warming, return to low heat just until hot, avoiding a vigorous boil after adding the miso for the best aroma. This is a flavor preference, not a substitute for safe reheating of refrigerated leftovers.
  8. Ladle evenly into four small bowls and scatter over the scallion greens. Serve immediately alongside the rest of a meal. Stir gently before dividing so the tofu, mushrooms and wakame are shared evenly.

Miso soup is a lighter addition to a meal, not a large standalone dinner in this four-portion recipe. A savory dashi base supports small tofu cubes, mushrooms and rehydrated wakame, while miso supplies most of the seasoning. Scallions add a fresh finish just before serving.

This Japanese-inspired version uses prepared dashi for a practical 20-minute method. Plain kombu-shiitake dashi can make a fish-free version, whereas bonito-based dashi contains fish. The miso is loosened separately and stirred in after the vegetables cook, which keeps lumps out and preserves its aroma.

Dashi and miso choices

Bonito-based dashi contains fish; kombu-shiitake dashi can be fish-free if all ingredients are suitable. Rice-based miso is not automatically certified gluten-free, and barley miso contains gluten. Read the labels rather than relying on product color.

Storage and reheating

Refrigerate promptly in shallow covered containers and use within 2 days for best texture. Reheat leftovers to at least 165 F (74 C); bring reheated soup to a rolling boil even though this may reduce the fresh miso aroma. For make-ahead cooking, keep the miso separate and add it after safely reheating the base.

Portions and substitutions

These are four starter portions. Rice, noodles or a main dish served alongside are not included in nutrition. Button mushrooms can replace shiitake; their flavor is milder. Do not increase dried seaweed casually, as a small dry amount expands greatly.

Frequently asked questions

Why should I dissolve the miso in a bowl first?

Thick paste can remain in salty clumps if dropped directly into the pot. Whisking it with a little broth makes it easy to distribute evenly without damaging the tofu.

Is this automatically vegetarian?

No. Common dashi contains bonito fish. Use a clearly labeled fish-free kombu-shiitake stock and suitable miso if making a vegetarian or vegan version.

Nutrition notes

Nutrition values are approximate editorial estimates per serving, not laboratory measurements or a verified nutritional analysis. Actual values vary with brands, portion size and substitutions. These original recipe drafts have not been kitchen-tested; cooking times are guides.

Estimate assumes all 48 g miso, 250 g tofu and unsalted dashi divided among four starter portions. Instant dashi and miso brands can raise sodium considerably. Using only 2 tablespoons miso lowers the estimate; rice and noodles are excluded.

Allergen information: Soy (tofu and miso); Fish when using bonito-based dashi; Barley or wheat may be present in miso or stock; check labels. Check all ingredient labels and individual dietary needs.

Illustrative photograph: Miso soup overhead.jpg by Douglas Perkins. CC0 1.0. Original photograph included without alteration; filename changed for organization. This is not a photograph of a test cook of this recipe. Representative miso soup with tofu photographed in Wakayama; contents may differ. The photograph retains its stated license.

Per serving

Nutrition facts

Serving size: One-quarter of the soup; approximately 1 generous cup as a starter (estimated nutrition)

Calories
90
Total fat
4 g
Saturated fat
0.5 g
Cholesterol
0 mg
Sodium
650 mg
Total carbohydrate
7 g
Dietary fiber
2 g
Total sugars
2 g
Protein
8 g

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