The warm, savory aroma that fills the kitchen while making a pot of homemade miso soup is incomparable. This comforting dish, which takes about 30 minutes to prepare, perfectly blends the rich flavors of miso and dashi with silky tofu. Using kombu and katsuobushi allows you to create a deep, umami-packed broth from scratch, making it a truly nourishing experience.
This recipe is ideal for anyone looking to make a quick, flavorful dish that’s both satisfying and wholesome. Enjoy it as a light meal, side dish, or part of a larger Japanese-inspired feast. You can prepare the dashi in advance and store it for easy assembly later.
Why You’ll Love This Recipe
- The homemade dashi adds a fresh, rich flavor not found in store-bought versions.
- Silken tofu adds a delightful creaminess and soft texture to the soup.
- The process is straightforward, making it accessible for both beginner and experienced cooks.
- It provides a nourishing, low-calorie option that can easily be customized with additional ingredients.
What You’ll Need
Gather your ingredients for this delightful miso soup.
For the Dashi
- 4 cups water
- 1 piece kombu (dried kelp) (⅓ oz, 10 g per piece; 4 x 4 inches or 10 x 10 cm)
- 1 cup katsuobushi (dried bonito flakes) (packed; I used a loosely packed 3 cups in the video for stronger flavor)
For the Soup
- 7 oz soft/silken tofu (kinugoshi dofu), cubed
- 4 Tbsp miso (use 1 Tbsp, 18 g for every 1 cup, 240 ml of dashi)
- 1 Tbsp dried wakame seaweed
- 1 green onion/scallion, cut into thin rounds
Note: Miso varies in flavor; choose white for a milder taste or red for a stronger one.
Substitutions & Swaps
- Use vegetable broth instead of water for a richer flavor.
- Replace katsuobushi with mushrooms for a vegan option.
- Swap silken tofu for firm tofu for more texture.
- Any mild seaweed can substitute for wakame.
How to Make It
Follow these steps to create your miso soup.
1. Gather ingredients.
Collect all the necessary items for making your soup.
2. Prepare the dashi.
Combine water, kombu, and katsuobushi in a pot. Bring to a simmer over medium heat, then remove from heat after about 10 minutes. Let it steep for an additional 10 minutes for stronger flavor.
3. Strain the dashi.
Pour the mixture through a fine mesh strainer. Discard the kombu and katsuobushi pulp, keeping the liquid dashi for the soup.
4. Add ingredients.
Return the dashi to the pot. Stir in the miso paste until fully dissolved. Add the cubed tofu and dried wakame to the broth.
5. Heat gently.
Warm the soup over low heat. Do not boil, as this can affect the consistency of the tofu and the flavor of the miso.
6. Serve hot.
Ladle the soup into bowls. Garnish with sliced green onion for added flavor and presentation.
How to Store It
Fridge: Store in an airtight container for up to 3 days.
Freezer: No, it affects the texture of tofu.
Reheat: Warm on the stove over low heat for 5-7 minutes.
Tips for Best Results
- Always dissolve miso in a small amount of dashi before adding to the pot to prevent lumps.
- Use the best-quality kombu and katsuobushi you can find for maximum flavor.
- Adjust the amount of miso to taste; start with less and add more if needed.
- For extra nutrition, add vegetables like mushrooms or spinach to the soup.
Serving Suggestions
- Pair with steamed rice for a complete meal.
- Serve alongside sushi for a delightful Japanese feast.
- Perfect as a light starter before a hearty main dish.




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