A warm, umami-rich bowl of miso soup is the heart of Japanese home cooking and the traditional start to a Japanese breakfast. This light yet deeply savory broth combines delicate dashi stock, mellow white miso paste, silken tofu, and tender wakame seaweed for a soothing bowl ready in minutes. Serve it alongside rice, grilled fish, or a simple egg dish for an authentic everyday meal.
Prep Time10 mins
Cook Time10 mins
Total Time20 mins
Servings4
Yield4 servings
Nutrition Facts
Per serving (estimated)
- 85 kcalCalories
- 3 gFat
- 0.5 gSaturated Fat
- 7 gCarbs
- 1 gFiber
- 2 gSugar
- 6 gProtein
- 720 mgSodium
- 180 mgPotassium
- 80 mgCalcium
- 1.5 mgIron
- 2 mgVitamin C
- 60 mcgVitamin A
Ingredients
For the dashi broth
- 4 cups cold water
- 1 piece (4 inch) dried kombu (kelp)
- 1/2 cup katsuobushi (bonito flakes)
- 1/2 teaspoon soy sauce
For the soup
- 3 1/2 tablespoons white miso paste (shiro miso)
- 1/2 block (about 6 oz) silken tofu, drained and cut into 1/2-inch cubes
- 2 tablespoons dried wakame seaweed
- 2 scallions, thinly sliced
- 1 teaspoon toasted sesame seeds, optional
Directions
- Combine 4 cups cold water and the kombu in a medium saucepan and let steep for 10 minutes to begin releasing the umami.
- Slowly heat the kombu water over medium heat; just before it reaches a simmer, remove and discard the kombu to prevent bitterness.
- Bring the liquid to a gentle boil, turn off the heat, and stir in the bonito flakes. Let them settle for 2 minutes, then strain the dashi through a fine-mesh sieve into a clean pot, discarding the flakes.
- Place the dashi back over low heat and warm until steaming but not boiling. Place the miso paste in a small bowl, ladle in about 1/2 cup of the warm dashi, and whisk until smooth to loosen the paste.
- Pour the miso slurry back into the pot and stir gently. Add the tofu cubes and wakame, then warm through for 1 to 2 minutes, taking care not to let the soup boil so the miso stays mellow and fragrant.
- Ladle the soup into 4 bowls, scatter the sliced scallions and sesame seeds over the top, and serve immediately while hot.
Cook’s Notes
- Never boil the soup after adding miso, as high heat destroys its delicate aroma and can make it taste harsh.
- For a deeper flavor, try a 50/50 blend of white (shiro) miso and red (aka) miso, adjusting the amount to taste.
- Soften dried wakame in a small bowl of water for 5 minutes and drain before adding so it plumps evenly in the soup.
- Cubed silken or soft tofu works best; firm tofu can be used but will give a chewier, less traditional texture.
- Leftover dashi keeps in the fridge for 2 days or freezes well in ice cube trays for quick future batches.










