Authentic Kombu-Dashi Miso Soup with Tofu
A perfectly balanced Japanese soup featuring deep umami from slow-simmered dashi, silky tofu, and fresh green onions. This recipe honors traditional techniques for an unpretentious yet profound experience. This japanese-inspired soups ready in about 25 minutes pairs kombu, water, silken tofu for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 120 calories and feeds 2, 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
- 10g kombu
- 800ml water
- 200g silken tofu
- 30g green onions
- 3 tbsp white miso paste
- 5g dried wakame seaweed
Instructions
- Step 1: Place 10g kombu in 800ml water in a pot and bring to just below boiling (80°C/176°F) over medium-low heat, then immediately remove kombu before bubbles form to avoid bitterness.
- Step 2: Simmer 5 minutes to extract umami, then strain into a clean pot, discarding kombu.
- Step 3: Gently add 200g cubed silken tofu and 5g rehydrated wakame, then heat until barely simmering (do not boil).
- Step 4: Whisk 3 tbsp white miso paste into 2 tbsp hot dashi in a bowl until smooth, then stir into the pot while gently warming (do not boil to preserve flavor).
- Step 5: Garnish with 30g thinly sliced green onions just before serving, allowing the soup to rest for 2 minutes to meld flavors.
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Frequently asked questions
How long does Authentic Kombu-Dashi Miso Soup with Tofu take to make?
Total time is about 25 minutes (15 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Authentic Kombu-Dashi Miso Soup with Tofu?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep kombu from drying out.
Can I substitute ingredients in Authentic Kombu-Dashi Miso Soup with Tofu?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Authentic Kombu-Dashi Miso Soup with Tofu for a different number of people?
The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Authentic Kombu-Dashi Miso Soup with Tofu?
Japanese soups like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
What others are saying
- ★★★★★
Swapped butter for olive oil to keep it lighter. Still delicious.
- ★★★★☆
Reliable weeknight option. Not going to blow your mind but always satisfying.
- ★★★★☆
Enjoyable meal. Instructions could be a touch more detailed on the timing.
