Authentic Kombu-Dashi Simmered Cod with Sake

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A delicate Japanese dish where fresh cod gently simmers in a pure dashi broth infused with sake, mirin, and kombu for umami depth. Served with steamed rice to soak up the savory liquid. This japanese-inspired asian (gluten-free) ready in about 27 minutes pairs (170g) cod fillets, inch (1.3cm) strip kombu, (240ml) dashi stock for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 385 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.

★ 3.9 (14 ratings) Prep: 15 min Cook: 12 min Serves 2 Japanese cuisine 385 cal/serving
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Ingredients

Instructions

  1. Step 1: Place the kombu strip in a small saucepan with 1 cup dashi stock and bring to just under a simmer (170°F/77°C) over medium-low heat, then remove from heat and let steep for 10 minutes to infuse the broth.
  2. Step 2: Add 1/4 cup sake, 2 tbsp mirin, and 1 tbsp soy sauce to the dashi mixture, then gently place the cod fillets on top; simmer uncovered for 8-10 minutes until the fish is opaque and flakes easily with a fork.
  3. Step 3: Discard the kombu, stir in 1 tsp shredded ginger, and let the sauce reduce by 1/3 until it coats the back of a spoon (about 2-3 minutes), then serve immediately over steamed rice.

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Frequently asked questions

How long does Authentic Kombu-Dashi Simmered Cod with Sake take to make?

Total time is about 27 minutes (15 min prep + 12 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 Simmered Cod with Sake?

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 (170g) cod fillets from drying out.

Can I substitute ingredients in Authentic Kombu-Dashi Simmered Cod with Sake?

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 Simmered Cod with Sake 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.

Is Authentic Kombu-Dashi Simmered Cod with Sake gluten-free?

Yes — this recipe is tagged gluten-free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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