Redfish on the half shell is a classic Gulf Coast dish, and it is easily translatable to many other kinds of fish.
Take Pacific rockfish, for example. I don’t often get excited about rockfish. They are tasty enough, but they are usually only a pound or two, are ridiculously easy to catch, and are caught mostly as an afterthought when you are salmon fishing.
Then I went to Alaska, and they grow rockfish big up there.
I can routinely catch 2 pound rockfish there, and often much, much larger. I do this in California, too, but it’s a bit rarer. If you happen to catch a giant, like a yelloweye rockfish, S. ruberrimus, you will want to treat it more like a Gulf redfish. Here’s why.
Big, bass-like fish tend to get thick, their meat coarse, and their scales big. Just like a bull red.
This can make them challenging to cook, but the Gulf anglers’ technique of redfish on the half shell is the answer. You fillet the fish but leave the skin and scales on. You do this with redfish because the scales on a drum of any color, red or black, are big and tough.
Why? Because that armor shields the meat, allowing you to set the fish on a smoky grill, ideally coated in Cajun seasoning, and grill it to perfection without destroying the fish. When it’s ready, you slide a spatula under the meat but above the skin, and the meat will slip off, leaving the charred skin and scales.
Or, since the scales are basically made of the same stuff as your fingernails, they won’t stick to your grill, so you can take the whole thing off if you want. It’s a genius preparation for big fillets. Try it.
Grilled Fish on the 'Half Shell'
- 1/4 cup kosher salt
- 4 cups water
- 2 cups crushed ice
- 2 to 3 pounds large fish fillets with the skin and scales still on
- 3 tablespoons vegetable oil
- 2 to 3 tablespoons Cajun seasoning
- 3 tablespoons unsalted butter
- 1 teaspoon black pepper
- 1/2 to 1 teaspoon cayenne pepper
- 1 teaspoon celery seed
- 2 tablespoon sweet paprika
- 1 tablespoon garlic powder
- 1 tablespoon dried thyme
- 1 tablespoon dried oregano
- Mix the salt and water until the salt dissolves, then add the ice. Brine the fish for 1 hour. Remove, pat dry with paper towels and put on a rack in a cool, breezy place for 30 minutes. While you are doing this, get your grill nice and hot.
- When you grill is ready, coat the fish with the vegetable oil, then sprinkle the meat side of the fish with the Cajun seasoning. Lay the fish on the grill with the fat side of the fillet over the hottest part of the fire, and the tail sections out toward the edge where the fire is a bit cooler. Let the fish grill undisturbed until the meat is fully cooked; it will just begin to flake when that happens. This can be done in an uncovered grill if it's a) not too windy, and b) the fillet is less than 2 inches thick. If you are worried about timing, cover the grill, or tent the fish with some heavy-duty foil.
- When the fish is done, gently remove it with a large spatula, or two spatulas if you need to. Move it to a platter and dot the top of it with the butter. Serve when the butter melts alongside rice, potato salad, maque choux, etc.