Kelp and Seaweed Miso Soup with Tofu
A soothing miso soup of dashi, white miso, kelp, wakame and soft tofu. This Japanese-inspired soup recipe, ready in about 25 minutes, pairs Dashi stock, White miso paste, Dried kelp strips for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4 cups Dashi stock
- 3 tbsp White miso paste
- 1/4 cup Dried kelp strips
- 2 tbsp Dried wakame seaweed
- 200 grams, cubed Soft tofu
- 2 stalks, thinly sliced Green onions
- 1 tsp Soy sauce
- 1 cup Water
The stock pot we’d simmer this in → Best Stock Pots for 2026: Top Picks + Buying Guide
Affiliate disclosure: AislePrompt may earn a commission on qualifying purchases made through Amazon links, at no additional cost to you. See our policy →
Equipment for this recipe
Tools this recipe's steps call for, with a link to each on Amazon.
Instructions
- Step 1: Soak 1/4 cup dried kelp strips and 2 tbsp dried wakame seaweed in 1 cup water for 10 minutes until rehydrated and softened, then drain.
- Step 2: In a medium pot, bring 4 cups dashi stock to a gentle simmer over medium heat.
- Step 3: Whisk 3 tbsp white miso paste in a small bowl with a few tablespoons of warm dashi until smooth, then stir the miso mixture back into the pot.
- Step 4: Add the rehydrated kelp and seaweed along with 200 grams cubed soft tofu. Simmer gently for 5 minutes without boiling to preserve flavor.
- Step 5: Stir in 1 tsp soy sauce then ladle soup into bowls. Garnish with 2 thinly sliced green onion stalks. Serve warm.









