Blackened Catfish

Mix the blackening spice by combining all the spice ingredients in a small bowl. This makes about 3 tablespoons — enough for 4 fillets with some left over. The ratio here is the classic Cajun blackening blend: paprika for color and smoke, garlic and onion for savory depth, herbs for earthiness, cayenne for heat. You can double this and store the extra in a jar for up to 6 months.

Prepare the fish by patting each fillet completely dry with paper towels. Brush both sides generously with melted butter, then coat evenly with the blackening spice, pressing it into the surface. The butter acts as glue for the spices and contributes to the crust formation. Let the seasoned fillets sit for 5 minutes while you heat the skillet.

Heat the cast iron skillet over high heat for 5 full minutes. Add the vegetable oil. The pan should be so hot that the oil shimmers immediately and a drop of water vaporizes on contact. This extreme heat is what separates blackening from ordinary pan-searing — the spices need to char, not just toast. Cast iron is essential because it holds heat when the cold fish hits the surface.

Sear the fish by carefully placing the fillets in the skillet, away from you to avoid splatter. Don't crowd the pan — cook in batches of 2 if needed. You'll hear an aggressive sizzle and see smoke immediately. Cook for 2-3 minutes without moving the fish. The spice crust should be dark and charred (not burnt — there's a difference). The edges of the fish will turn opaque as it cooks from the bottom up.

Flip carefully using a fish spatula or thin-edged spatula. The crust should release cleanly if the pan was hot enough. Cook the second side for 2-3 minutes until the fish is just cooked through — it should flake easily when pressed gently with a finger but still be moist in the center. Catfish is done at 145°F internal, but pull it at 140°F since it carries over.

Add a pat of butter to the pan after removing the fish. It will brown immediately in the residual heat. Spoon this brown butter over the fillets — it picks up all the charred spice flavor left in the pan.

Serve immediately with lemon wedges, remoulade sauce, and rice or coleslaw. Squeeze the lemon over the fish at the table — the acidity brightens the smoky, rich flavors and cuts through the butter. Blackened catfish is a complete flavor experience: smoky, spicy, buttery, and bright all at once.