What type of white fish works best for this recipe?
Cod, halibut, sea bass, or any mild white fish with firm flesh. Avoid very delicate fish like sole, which may break apart during poaching.
Can I make this ahead of time?
Yes. Prepare the broth up to 1 day ahead and refrigerate. Poach the fish just before serving for best texture, or store poached fish in broth for up to 2 days.
How do I know when the fish is done?
The fish is ready when it flakes easily with a fork and is opaque throughout, typically 6–8 minutes depending on fillet thickness.
Can I use red miso instead of white miso?
White miso is milder and creamier; red miso is saltier and deeper. You can substitute, but reduce the amount to 1.5 tbsp and adjust soy sauce.
What should I serve this with?
Jasmine rice, steamed bok choy, or rice noodles work well. Use the flavorful broth as a sauce.