Take the miso marinade and spread it evenly over the tops and both sides of the black cod fish.
Any leftovers can be stored in an airtight container for up to 3 days. You can likewise freeze leftovers for a month. To reheat the miso cod, it's best to thaw in the fridge and place on a baking sheet. Reheat in the oven at 350 for 5-6 minutes with 1 tablespoon of water. Line your baking sheet with foil for easy cleanup.
You can marinate the cod for 2 days and then remove excess marinade. Then freeze the ready marinated fish for up to 1 month. That entirely in the fridge before proceeding to cooking the fish in the oven.
The best thing about this recipe is that the more it stays in the marinade the better it tastes. So you can marinate the fish for up to 3 days in advance.
Our second choice other than black cod here would be Chilean Sea Bass. It's also rich and buttery in taste with a high omega-3 content so it fits the bill. Salmon would be another great choice. Avoid using dry or firm fish like Mahi Mahi.
You'll beed white miso paste for this recipe, and we always buy organic miso. Since white miso is unsweetened, we add some brown sugar to our ingredients. If you can find Saikyo miso, then it would be idea. It's sweetened and rich, and in this case skip the sugar.
In some cases, we've seen water substituted for sake. We have found the best way is to use rice vinegar.
Black cod aka Sablefish s richer in omega 3 and hence has a buttery taste and texture compared to regular cod. Best sources of black cod is Alaska! Pacific cod which is what we used in Pan Seared Cod and Baked Cod Recipe has a firmer texture. It also has a slightly sweeter flavor, and relatively flakey texture.