Blackened Tilapia with Cajun Seasoning
Blackened tilapia gets its dark crust from a paprika-forward spice rub seared in a skillet. The goal is deeply browned seasoning and moist, flaky fish—not a burnt coating. Pat the fillets dry, give them room in the pan, and lower the heat if the spices darken before the center cooks through.
Fillet thickness and pan heat affect the timing, so start checking early. Serve the whole fillets on their own or with rice, corn, and scallions. Prep time: 10 minutes. Cook time: about 8–12 minutes, depending on thickness and batches. Serves 4.
Ingredients

- 4 tilapia fillets, thawed if frozen (about 4–6 ounces each; 680g total)
- 2 teaspoons paprika
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon dried oregano
- 1/2 teaspoon dried thyme
- 1/2 teaspoon black pepper
- 1/8 teaspoon cayenne pepper, or up to 1/4 teaspoon for more heat
- 1/2 teaspoon kosher salt (adjust if using another type of salt)
- 1 tablespoon canola or vegetable oil, plus a little more if needed between batches
Optional for serving: 1–2 sliced scallions, rice with corn, and lemon wedges. To use prepared Cajun or blackening seasoning instead of the homemade rub, use about 1 tablespoon, or enough to coat both sides lightly. Check the label before adding salt; blends vary in salt and heat.
How to Make Blackened Tilapia

- Dry the fish: Thaw frozen fillets fully, then pat both sides dry with paper towels. A dry surface helps the seasoning sear instead of steam.
- Season the fillets: Mix the paprika, garlic powder, onion powder, oregano, thyme, black pepper, cayenne, and salt. Coat both sides of each fillet evenly, without thick clumps. Cook soon after seasoning; a brief rest is optional.
- Heat the skillet: Set a 12-inch heavy-bottomed skillet over medium-high heat. Add the oil and heat until it shimmers. The oil does not need to smoke.
- Sear the first side: Add the fillets with space between them, cooking in batches if needed. Cook uncovered and undisturbed for about 2–4 minutes, checking at 2 minutes. The underside should be deeply browned and release more readily when gently nudged. Reduce the heat to medium if the spices darken too quickly.
- Turn and finish: Gently turn each fillet once with a wide, thin spatula. Cook for about 2–4 minutes more, depending on thickness. The center should be opaque and separate into moist flakes. For food safety, check that the thickest part reaches 145°F (65°C).
- Serve: Transfer the whole fillets to plates. If desired, scatter a few sliced scallions over the fish and serve with rice and corn or lemon wedges.
How to Brown the Crust Without Burning It
Blackened describes the dark, browned spice coating, not charred fish. If the coating develops burnt patches or smells acrid before the center is done, lower the heat to medium. Avoid moving the fish too soon: once the first side has browned and releases more readily, the delicate fillet is easier to turn intact.
A crowded skillet traps moisture and weakens the sear. If four fillets do not fit with space around them, cook in batches, adding a little oil between batches if needed.
How to Tell When Tilapia Is Done
Thin fillets may finish before the full time range, while thicker ones can take longer. Start checking early: the center should be opaque, and gentle pressure from a fork should separate the flesh into moist flakes. Use the temperature check alongside those cues rather than cooking longer just to match the clock.
Seasoning Adjustments
For less heat, reduce or omit the cayenne; it is not needed to form the browned crust. A prepared seasoning blend can replace the homemade rub, but its salt and cayenne levels may differ. The fish does not need a marinade or a long rest after seasoning.
How to Store and Reheat
Refrigerate leftover fish in a covered container for up to 3 days. For the best crust and texture, serve it freshly cooked. To reheat, cover with foil and warm in a 275°F (135°C) oven for about 10–15 minutes, until heated through. The crust may soften.
Nutrition
Approximate nutrition per serving, based on 1 of 4 servings and excluding optional sides and garnishes: 205 calories, 35g protein, 6g fat, and 2g carbohydrates. Approximate nutrition per 100g: 115 calories, 19g protein, 4g fat, and 1g carbohydrates. Values vary with fillet size, seasoning, and the amount of oil used.
Equipment
- 12-inch heavy-bottomed skillet
- Paper towels
- Wide, thin spatula
- Food thermometer
Ingredients
For the Fish
- 4 tilapia fillets, thawed if frozen (about 4–6 ounces each; 680 g total)
For the Cajun Seasoning
- 2 teaspoons paprika
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon dried oregano
- 1/2 teaspoon dried thyme
- 1/2 teaspoon black pepper
- 1/8 teaspoon cayenne pepper, or up to 1/4 teaspoon for more heat
- 1/2 teaspoon kosher salt, adjusted if using another type of salt
For Cooking and Serving
- 1 tablespoon canola or vegetable oil, plus a little more if needed between batches
- Optional: 1–2 sliced scallions
- Optional: rice with corn
- Optional: lemon wedges
Instructions
- Thaw frozen fillets fully, then pat both sides dry with paper towels.
- Mix the paprika, garlic powder, onion powder, oregano, thyme, black pepper, cayenne, and salt. Coat both sides of each fillet evenly.
- Heat a 12-inch heavy-bottomed skillet over medium-high heat. Add the oil and heat until it shimmers.
- Add the fillets with space between them, working in batches if needed. Cook uncovered and undisturbed for 2–4 minutes, checking at 2 minutes.
- Reduce the heat to medium if the spices darken too quickly. When the underside is deeply browned and releases more readily, gently turn each fillet with a wide, thin spatula.
- Cook for another 2–4 minutes, until the center is opaque and flakes easily. Check that the thickest part reaches 145°F (65°C).
- Transfer the fillets to plates. Serve with optional scallions, rice and corn, or lemon wedges.
Tips
- Dry the fillets well so the seasoning sears instead of steaming.
- Leave space between fillets; cook in batches if the skillet is crowded.
- Check thin fillets early, since they may cook faster than the full time range.
- Lower the heat to medium if the spice coating develops burnt patches or smells acrid.
- Wait until the first side is browned and releases more readily before turning the delicate fish.
Variations
- Prepared Cajun Seasoning: Replace the homemade rub with about 1 tablespoon of prepared Cajun or blackening seasoning, enough to lightly coat both sides; check its salt and heat before adding extra.
- Milder Blackened Tilapia: Reduce or omit the cayenne pepper for less heat.
