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Miso Soup with Tofu and Seaweed Recipe

If you’re looking for a comforting, warm bowl that feels like a hug on a chilly day, I absolutely love sharing this Miso Soup with Tofu and Seaweed Recipe with friends. It’s simple, nourishing, and has a delicate depth of flavor that will quickly become your go-to for easy dinners or when you want something light but satisfying. Trust me, once you try it, you’ll find yourself craving that subtle umami boost only miso soup can provide — plus, it’s quick enough for busy weeknights but impressive enough for company.

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Why You’ll Love This Recipe

  • Quick and Easy: It comes together in just 20 minutes, perfect for your busy schedule.
  • Light yet Filling: This soup is satisfying without feeling heavy, thanks to silky tofu and savory miso.
  • Authentic Umami Flavor: Using kombu and wakame seaweed creates a rich, authentic taste you’ll appreciate.
  • Versatile and Adaptable: Easy to tweak by swapping ingredients or adding your favorite toppings.

Ingredients You’ll Need

These ingredients are staples in Japanese cooking and work harmoniously to create a flavorful broth packed with umami. When shopping, look for high-quality kombu and wakame — they make all the difference. I usually buy my miso paste from an Asian market or a well-stocked grocery store; white miso is mild and perfect for beginners.

Flat lay of a long dark green fresh kombu seaweed strip, a small white ceramic bowl filled with clear water, a small white ceramic bowl holding rehydrated dark green wakame seaweed, a small white ceramic bowl with smooth pale beige white miso paste, a small pile of freshly chopped bright green onion pieces, a neat arrangement of soft white silken tofu cubes, a small white ceramic bowl filled with dark amber tamari soy sauce, placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997 - Miso Soup with Tofu and Seaweed, hearty miso soup recipes, healthy vegetarian soup, quick Asian soup recipes, comforting tofu seaweed soup
  • Kombu: This dried kelp is key for the broth’s rich umami flavor — just don’t boil it to avoid bitterness.
  • Water: Preferably filtered for the cleanest taste.
  • Wakame dried seaweed: Rehydrates quickly and adds that lovely chewy texture.
  • White miso paste: Mild and slightly sweet, great for a gentle miso soup base.
  • Green onion: Adds freshness and a subtle bite.
  • Silken tofu: Soft and silky, it absorbs the broth beautifully.
  • Tamari: Use as a gluten-free soy sauce alternative to season to taste.
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Note: You’ll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Variations

I love how versatile this miso soup is — I often customize it based on what I have in the fridge or what my family feels like eating. Play around, and you might discover your own favorite twist!

  • Add Mushrooms: I sometimes toss in thinly sliced shiitake or enoki mushrooms for an earthier flavor and a little more texture.
  • Spicy Kick: A drizzle of chili oil or a pinch of shichimi togarashi brings warmth and complexity when I’m craving something with a bit of heat.
  • Vegetarian Boost: Toss in baby spinach or thinly sliced carrots for extra veggies — it makes the soup heartier and even more colorful.
  • Swap Tofu: Feel free to use firm tofu if you want something with a bit more bite; just add it gently to avoid breaking it up too much.

How to Make Miso Soup with Tofu and Seaweed Recipe

Step 1: Prepare the Kombu Broth Gently

Start by rinsing your kombu briefly — this removes any grit but keeps the flavor intact. Place it in a pot with 4 cups of water and warm it on low heat, aiming for a gentle simmer around 10 minutes. Avoid letting the water boil; I discovered this trick because the first time I boiled kombu, the broth got bitter and ruined the whole batch! Once the gentle simmer is done, remove the kombu and set it aside. This kombu broth lays that savory foundation that’s subtle yet essential.

Step 2: Rehydrate Wakame Seaweed

While the broth is simmering, soak your wakame seaweed in a bowl of warm water for at least 5 minutes. It will puff up nicely and become tender — just like magic. This step gives you that lovely seaweed texture that’s soft but still chewy, which makes the soup far more interesting to eat.

Step 3: Incorporate the Miso

Before adding the miso to your soup, it’s critical to dissolve it properly so you avoid clumps. I like to scoop a few tablespoons of the hot broth into a small bowl, then whisk in the miso paste until smooth. Then, stir this mixture back into the pot. This method ensures the miso dissolves evenly and doesn’t get grainy — a little trick I picked up the first time I made miso soup and struggled with chunks!

Step 4: Add Wakame, Tofu & Green Onion

Drain your wakame and gently add it to the pot along with cubed silken tofu and chopped green onions. Keep the heat very low and let it simmer for just 1 to 2 minutes — the tofu just needs to warm through without falling apart. Now, taste and season with tamari to your liking. The tamari enhances savory depth without overpowering that delicate miso flavor.

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Pro Tips for Making Miso Soup with Tofu and Seaweed Recipe

  • Don’t Boil Kombu: I learned the hard way that kombu turns bitter if boiled — always keep it under a gentle simmer.
  • Miso Last: Never boil miso paste directly. Dissolving it carefully in warm broth preserves its flavor and probiotics.
  • Gentle Stirring: When you add tofu, stir lightly to keep its cubed shape and silky texture intact.
  • Taste as You Go: Adding tamari slowly lets you customize saltiness since miso paste can vary in salt content.

How to Serve Miso Soup with Tofu and Seaweed Recipe

Miso Soup with Tofu and Seaweed Recipe - Serving

Garnishes

To finish, I love sprinkling a few more chopped green onions on top for freshness and a sprinkle of toasted sesame seeds if I’m feeling fancy. Sometimes, I add a tiny drizzle of chili oil or a few tiny nori strips for a vibrant touch. These garnishes add subtle complexity and a pop of color that makes the soup more inviting.

Side Dishes

This soup is delightful alongside steamed sushi rice or a simple vegetable tempura platter. When I want a light dinner, I pair it with edamame or a fresh cucumber salad dressed with rice vinegar — it keeps the meal balanced and refreshing.

Creative Ways to Present

For gatherings, I’ve served the soup in rustic ceramic bowls, paired with chopsticks and small wooden spoons — it enhances the cozy vibe. Another fun idea is to offer a garnish “bar” with chopped scallions, chili flakes, and sesame seeds, so everyone can personalize their bowl.

Make Ahead and Storage

Storing Leftovers

I usually store leftover miso soup in an airtight container in the fridge for up to 2 days. Just a heads-up — tofu can absorb a bit more broth over time, so the texture might be slightly different but still delicious. If it looks a little separated, a gentle stir before reheating easily brings it back together.

Freezing

I don’t recommend freezing miso soup with tofu and seaweed because the tofu’s texture changes and seaweed can become too soft or mushy. It’s better enjoyed fresh or refrigerated.

Reheating

When reheating, warm the soup gently on the stove over low heat. Avoid boiling as it can alter the flavor and silky tofu texture. Adding a small splash of water or broth while reheating can refresh the soup if it feels too concentrated.

FAQs

  1. Can I use other types of miso paste in this recipe?

    Absolutely! While white miso (shiro miso) is mild and sweet, you can use yellow miso (awase) or red miso (aka) for a stronger, deeper flavor. Just adjust the amount to taste, as darker miso tends to be saltier and more robust.

  2. What’s the best way to store leftover miso soup?

    Store leftovers in an airtight container in the refrigerator and consume within 2 days for best flavor and texture. Reheat gently over low heat to prevent breakdown of tofu and avoid boiling.

  3. Can I make this soup vegan?

    This recipe is already vegan as long as your miso paste doesn’t contain fish-based ingredients — many do not, but it’s always good to check the label. Use tamari instead of soy sauce to keep it gluten-free and vegan-friendly.

  4. Is it necessary to use kombu?

    Kombu adds deep umami to the broth and makes a big flavor difference. While you can skip it in a pinch, your miso soup will lack some of its traditional richness. If you skip kombu, consider using a mild vegetable broth as a base.

Final Thoughts

This Miso Soup with Tofu and Seaweed Recipe holds a special place in my kitchen because it’s simple, comforting, and reminds me of sharing quiet family dinners. I’m excited for you to try it and make it your own, whether you stick to the basics or add your favorite twists. It’s one of those recipes that feels like home, every time you take a spoonful. Enjoy your cozy bowl!

Print
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Miso Soup with Tofu and Seaweed Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 86 reviews
  • Author: Julia
  • Prep Time: 8 minutes
  • Cook Time: 12 minutes
  • Total Time: 20 minutes
  • Yield: 4 servings
  • Category: Soup
  • Method: Stovetop
  • Cuisine: Japanese
  • Diet: Gluten Free

Description

A traditional Japanese miso soup made with flavorful kombu broth, rehydrated wakame seaweed, silken tofu, and green onions, seasoned with white miso paste and tamari for a warm, comforting, and umami-rich starter or light meal.


Ingredients

Broth Ingredients

  • 1 (3-inch) piece kombu
  • 4 cups water

Soup Ingredients

  • 3 tablespoons dried wakame seaweed
  • ¼ cup white miso paste
  • ⅓ cup chopped green onion
  • 6 ounces silken tofu, cubed
  • Tamari, to taste


Instructions

  1. Prepare Kombu Broth: Gently rinse the kombu piece to remove any debris. Place it in a medium pot with 4 cups of water and gently simmer for 10 minutes, ensuring the water does not boil to avoid bitterness in the broth.
  2. Soak Wakame: Place the dried wakame seaweed in a small bowl with warm water and let it soak for at least 5 minutes to rehydrate and expand.
  3. Add Miso Paste: Remove the kombu from the pot. In a small bowl, mix the white miso paste with a ladle of hot broth until smooth to prevent clumps, then stir this mixture back into the pot.
  4. Combine Soup Ingredients: Drain the wakame and add it to the pot along with the chopped green onions and silken tofu cubes. Simmer the soup over very low heat for 1 to 2 minutes to heat ingredients through without boiling, preserving flavor and texture.
  5. Season and Serve: Taste the soup and season with tamari according to your preference. Serve hot for a nourishing and savory miso soup experience.

Notes

  • Do not boil the kombu broth to avoid a bitter taste.
  • Silken tofu is best used for its delicate texture.
  • Tamari is a gluten-free soy sauce alternative for seasoning.
  • Adjust miso paste quantity based on desired saltiness and umami intensity.
  • This soup is best consumed fresh, as reheating can change the flavor and texture.

Nutrition

  • Serving Size: 1 cup
  • Calories: 70 kcal
  • Sugar: 1 g
  • Sodium: 550 mg
  • Fat: 2 g
  • Saturated Fat: 0.3 g
  • Unsaturated Fat: 1.5 g
  • Trans Fat: 0 g
  • Carbohydrates: 6 g
  • Fiber: 1 g
  • Protein: 5 g
  • Cholesterol: 0 mg

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