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Created by Chef Remy
Sweet Gulf redfish wearing a bold crust of Cajun spices, seared in a screaming cast iron until gloriously charred outside and flaky tender within, finished with golden butter pooling on the plate.
This dish changed Cajun cooking forever. The technique came out of New Orleans in the early 80s, and it spread across the country like wildfire. There's a reason: it works. The char, the spice, the butter, the perfectly cooked fish underneath. Pure Louisiana magic.
The blackening isn't about burning. That's what people get wrong. It's about the spices blooming in the heat, caramelizing against the butter, forming a crust that's almost bitter at the edges but sweet and complex underneath. The fish stays moist inside because the crust seals it. Fast and hot. That's the bayou way.
You'll set off your smoke alarm. Open the windows, turn on the fan, and don't apologize. Good cooking makes noise and smoke sometimes. At Lagniappe, we had to install industrial ventilation just for this dish. That's how you know something real is happening in that pan.
Now, about the heat in that spice blend: a full tablespoon of cayenne gives you the authentic fire, the kind that wakes up your palate without burning it down. But taste as you go. Start with half the cayenne if you're spice-shy, and build from there. My grandmother Evangeline always said the best cooks season to their family's taste, not to prove something. Trust your palate.
Quantity
4 (6-8 ounces each)
skin removed
Quantity
1 cup (2 sticks)
melted and divided
Quantity
2 tablespoons
Quantity
1 tablespoon
Quantity
1 tablespoon
Quantity
1 tablespoon
Quantity
2 teaspoons
Quantity
2 teaspoons
Quantity
1 teaspoon
freshly ground
Quantity
1 teaspoon
Quantity
1 teaspoon
Quantity
for serving
Quantity
for garnish
| Ingredient | Quantity |
|---|---|
| fresh redfish filletsskin removed | 4 (6-8 ounces each) |
| unsalted buttermelted and divided | 1 cup (2 sticks) |
| paprika | 2 tablespoons |
| cayenne pepper | 1 tablespoon |
| garlic powder | 1 tablespoon |
| onion powder | 1 tablespoon |
| dried thyme | 2 teaspoons |
| dried oregano | 2 teaspoons |
| black pepperfreshly ground | 1 teaspoon |
| white pepper | 1 teaspoon |
| kosher salt | 1 teaspoon |
| lemon wedges | for serving |
| fresh parsley (optional) | for garnish |
Combine the paprika, cayenne, garlic powder, onion powder, thyme, oregano, black pepper, white pepper, and salt in a small bowl. Whisk it together until the colors marry into that deep brick red that means business. This is your blackening spice, and it's the soul of this dish. You'll have about a quarter cup, more than you need for four fillets, but trust me, you'll want the extra.
Pat the redfish fillets completely dry with paper towels. This is critical. Any moisture on that fish will steam instead of sear, and you'll lose that magnificent crust. Dip each fillet in about half the melted butter, coating both sides generously. The butter carries the spices and helps them bloom in the heat. Now press each buttered fillet into the spice blend, coating both sides with a thick, even layer. Don't be shy. You want that fish wearing a coat, not a light dusting.
Set your cast iron skillet over the highest heat your stove can produce. Let it heat for a full ten minutes, maybe longer. At Lagniappe, we use a dedicated outdoor burner for this dish because the heat we need will make your smoke alarm sing. The skillet should be so hot that a drop of water doesn't sizzle but vaporizes instantly, disappearing before it can even dance. You're looking for the pan to start showing a faint white haze. That's when you know it's ready.
Working quickly, place one or two fillets in the screaming hot skillet, presentation side down. Don't overcrowd the pan or the temperature drops and you're poaching, not blackening. You'll hear an aggressive sizzle and see smoke billow up immediately. That's exactly right. Cook for about two minutes without moving the fish. The spices are charring, the butter is caramelizing, and magic is happening. Drizzle a tablespoon of the remaining melted butter over the top of each fillet while it cooks.
Flip each fillet carefully with a thin spatula. The underside should be deeply charred, almost black in spots, with the crust looking like something between burnt and beautiful. That's the sweet spot. Cook another minute to two minutes on the second side, depending on thickness. The fish is done when it flakes easily at the thickest part but still looks moist inside. Redfish can go from perfect to overdone in thirty seconds, so watch it close.
Transfer the fillets to warm plates and let them rest for just a minute. Drizzle with any remaining melted butter, letting it pool golden on the plate. Add a lemon wedge on the side and a sprinkle of fresh parsley if you like. Serve immediately while the crust is still crackling and the fish is still holding its heat. This dish doesn't wait, and neither should your guests.
1 serving (about 210g)
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