Miso poached salmon is a weeknight dinner that tastes far more complex than its effort suggests. Salmon fillets are gently simmered in a savory-sweet broth of white miso, ginger, and mirin, which seasons the fish while keeping it exceptionally moist. The same broth becomes a silky sauce, making this a complete, elegant dish in about 20 minutes.
Ingredients
- 4 salmon fillets, skin on or off (about 6 oz / 170 g each)
- 3 cups (720 ml) low-sodium vegetable or fish stock
- 3 tablespoons (45 g) white miso paste
- 2 tablespoons (30 ml) mirin
- 1 tablespoon (15 ml) soy sauce
- 1 tablespoon (15 g) fresh ginger, peeled and thinly sliced
- 2 cloves garlic, smashed
- 1 teaspoon (5 ml) toasted sesame oil
- 2 scallions, thinly sliced, for garnish
- 1 teaspoon sesame seeds, for garnish
Instructions
- Pat the salmon fillets dry with paper towels. Check for pin bones and remove them with tweezers. Set the fish aside at room temperature while you prepare the broth.
- In a medium saucepan or shallow skillet wide enough to hold the salmon in a single layer, combine the stock, miso paste, mirin, soy sauce, ginger, and garlic. Whisk until the miso is fully dissolved—no lumps should remain.
- Bring the broth to a gentle simmer over medium heat. Do not let it boil hard, as that can make the miso taste bitter.
- Reduce the heat to low so the liquid is at a bare shimmer, about 180°F (82°C). Carefully slide the salmon fillets into the broth, skin-side down if they have skin. The liquid should come about halfway up the fillets; if it doesn’t, add a little water or stock.
- Poach the salmon for 8–12 minutes, depending on thickness, until the flesh is opaque and flakes easily with a fork. To check doneness precisely, insert an instant-read thermometer into the thickest part of a fillet—it should read 145°F (63°C), the USDA FSIS safe minimum for fish.
- Using a slotted spatula, carefully transfer the salmon to serving plates or a platter. Tent loosely with foil to keep warm.
- Turn the heat up to medium-high and simmer the broth for 3–5 minutes, until it reduces by about a third and thickens slightly. Stir in the sesame oil.
- Spoon the hot broth over the salmon. Garnish with scallions and sesame seeds. Serve immediately.
Tips
- Use white miso, not red or brown. White (shiro) miso is mild and sweet; darker misos are saltier and more intense and will overpower the delicate salmon. If you only have red miso, use half the amount and add a teaspoon of honey to balance.
- Keep the broth below a simmer. A rolling boil will make the fish tough and the miso grainy. The liquid should barely tremble—if you see bubbles, lower the heat.
- Don’t skip the thermometer. Salmon can go from perfectly cooked to dry in under a minute. Pull it at 145°F (63°C) for the flakiest, safest result.
- Pat the fish dry before poaching. Excess moisture dilutes the broth and prevents the miso from clinging to the fish.
Serving Suggestions
Serve the salmon over steamed jasmine rice or soba noodles to soak up the broth. A side of blanched bok choy, asparagus, or sugar snap peas tossed in a little sesame oil complements the flavors. For a lighter meal, serve with a simple cucumber salad dressed with rice vinegar and a pinch of sugar.
Variations
- Spicy miso salmon: Add 1 tablespoon of sriracha or gochujang to the broth along with the miso.
- Citrus twist: Replace ½ cup (120 ml) of the stock with fresh orange juice and add a few strips of orange zest to the poaching liquid.
- Miso-glazed finish: After poaching, brush the fillets with a mixture of 1 tablespoon miso and 1 teaspoon honey, then broil for 2–3 minutes until caramelized.
- Vegetable broth version: Use a rich mushroom or kombu dashi instead of vegetable stock for a deeper umami flavor.
Storage and Reheating
Refrigerate leftover salmon and broth separately in airtight containers within 2 hours of cooking. The salmon will keep for up to 2 days; the broth for up to 4 days. To reheat, place the salmon in a small skillet with a few tablespoons of the broth and warm gently over low heat for 3–4 minutes, until heated through to 165°F (74°C). Avoid the microwave, which can dry out the fish. The broth can also be frozen for up to 3 months and used as a base for soups or noodles.
Frequently Asked Questions
Can I use frozen salmon? Yes, but thaw it completely in the refrigerator overnight first. Pat it very dry before poaching, as frozen fish releases more moisture. Add 2–3 minutes to the poaching time if the fillets are still slightly icy in the center.
What if I don’t have mirin? Mix 1 tablespoon of rice vinegar with 1 teaspoon of sugar as a substitute for each tablespoon of mirin. Alternatively, use dry sherry or a splash of sake. The flavor will be slightly less sweet but still balanced.
Can I make this with another type of fish? Absolutely. Firm white fish like cod, halibut, or sea bass work beautifully. Thicker fillets will need a few extra minutes; thinner ones will cook faster. Always check for 145°F (63°C).
Is the poaching liquid safe to reuse? No. The broth has been in contact with raw fish and must be treated as a leftover. Use it within 2 days or freeze it, and never reuse it for a second batch of raw fish.
Why is my miso broth cloudy or gritty? The miso wasn’t fully dissolved before the fish went in. Whisk it into the stock off the heat, or push it through a fine-mesh strainer. Also, avoid boiling the broth after adding the miso.
Can I poach the salmon skin-on? Yes, skin-on works well and helps hold the fillet together. The skin will not crisp during poaching, so if you want crispy skin, sear it separately in a hot pan for 2–3 minutes before serving.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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