Blackened Fish/Chicken

Blackened Fish/Chicken
⏱️ cook time 25 minutes
🍽️ servings 4
⚡ Difficulty easy

intro

Bold, smoky spice-crusted blackened fish or chicken, seared to juicy perfection with classic Cajun flavors, ready in 25 minutes for a fast, satisfying meal.

Ingredients

Firm white fish fillets (cod, tilapia, or snapper; substitute with 1.5cm-thick pounded boneless, skinless chicken breasts if preferred) 680 grams (4 x 170g portions)
Unsalted butter, melted 8 tablespoons (113 grams / ½ cup)
Smoked paprika 2 tablespoons (14 grams)
Garlic powder 1 tablespoon (9 grams)
Onion powder 1 tablespoon (7 grams)
Dried oregano 1 teaspoon (1 gram)
Dried thyme 1 teaspoon (1 gram)
Cayenne pepper 1 teaspoon (2 grams, adjust for preferred heat level)
Kosher salt 1.5 teaspoons (9 grams)
Freshly ground black pepper 1 teaspoon (2 grams)
Lemon wedges (optional, for serving) 4 wedges (1 medium lemon)

Steps

1

Prep and dry protein

Pat fish fillets (or pounded 1.5cm-thick chicken breasts, if using) completely dry with paper towels on all sides; set on a plate at room temperature for 10 minutes to remove chill, which promotes even, consistent searing.

Step 1
step1:Prep and dry protein
2

Blend blackening spices

In a small shallow dish, combine 2 tbsp (14g) smoked paprika, 1 tbsp (9g) garlic powder, 1 tbsp (7g) onion powder, 1 tsp (1g) dried oregano, 1 tsp (1g) dried thyme, 1 tsp (2g) cayenne pepper, 1.5 tsp (9g) kosher salt, and 1 tsp (2g) black pepper; stir with a fork until fully evenly mixed, with no spice clumps remaining.

Step 2
step2:Blend blackening spices
3

Coat protein evenly

Brush all sides of each dried protein portion thoroughly with 6 tablespoons (85g) of the melted unsalted butter, using roughly 1.5 tbsp per portion. Press each buttered portion firmly into the spice mix to coat every surface evenly, creating a thick, uniform rust-colored spice layer; set coated pieces on a clean plate, and reserve the remaining 2 tbsp (28g) melted butter for searing.

Step 3
step3:Coat protein evenly
4

Preheat cast iron skillet

Place a heavy 12-inch cast iron skillet over medium-high heat for 5 full minutes, until the pan is very hot and a drop of water flicked onto the surface evaporates instantly in 1-2 seconds. Turn your stovetop exhaust fan to high to vent light smoke from the high-heat searing process.

Step 4
step4:Preheat cast iron skillet
5

Sear first protein side

Working in 2 batches to avoid overcrowding the pan, add 1 tbsp of the reserved melted butter to the hot skillet, then place 2 coated protein portions in the pan. Cook undisturbed for 3 minutes (4 minutes if using chicken) until the spice crust is deeply dark, nearly black in spots, and crisp to the touch.

Step 5
step5:Sear first protein side
6

Flip and cook through

Use a thin metal spatula to flip each portion, then cook undisturbed for another 2-3 minutes (3-4 minutes for chicken) until the internal temperature reaches 63°C/145°F for fish (flaky, opaque flesh) or 74°C/165°F for chicken (juicy, no pink remaining). Transfer cooked pieces to a clean plate, then repeat the searing process with the remaining 1 tbsp reserved butter and 2 raw protein portions.

Step 6
step6:Flip and cook through
7

Rest and serve hot

Let all cooked blackened protein rest for 2 minutes to allow internal juices to redistribute, then serve immediately with optional lemon wedges, as the bold, crisp spice crust needs no heavy additional sauce.

Step 7
step7:Rest and serve hot

Tips

1.Always pat protein completely dry with paper towels before coating: excess surface moisture will prevent the spice crust from crisping properly and cause hot butter to splatter excessively in the hot pan.
2.Never overcrowd the skillet: cooking in 2 small batches keeps the pan temperature consistently high, which creates the signature dark, crisp blackened crust instead of steaming the protein and leaving it soggy.
3.Run your stovetop exhaust fan on high before starting to sear: high-heat cooking with dried spices creates light, wispy smoke that can trigger home smoke alarms if not vented; for zero indoor smoke, cook this on an outdoor propane side burner.

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Blackened Fish/Chicken:Frequently Asked Questions

1.Is blackened food supposed to taste burnt, or am I doing something wrong if the crust is very dark?
Great question! That dark crust isn’t burnt—it forms when melted butter’s milk solids caramelize with the spice blend at high heat, creating that signature bold, smoky Cajun flavor. Aim for a deep mahogany brown, not jet-black ash; if you smell acrid, bitter notes, turn your heat down slightly to avoid over-charring.
2.Can I use any type of fish for this recipe, or do I need a specific variety?
Stick to firm, thick white fish for best results—cod, tilapia, red snapper, grouper, or catfish all hold up perfectly to high-heat searing. Avoid delicate, thin fish like sole or flounder, which will fall apart easily when flipped and can overcook in seconds under the high heat needed for a proper blackened crust.
3.How do I adjust this recipe if I’m making it with chicken instead of fish?
For chicken, start with boneless, skinless breasts pounded to a uniform ½-inch (1.5cm) thickness so they cook evenly. Cook 3-4 minutes per side over medium-high heat, until the internal temp hits 165°F on an instant-read thermometer, since chicken takes slightly longer to cook through than most fish fillets.
4.My kitchen gets super smoky when I make blackened protein—how do I cut down on that excess smoke?
That high-heat sear does create smoke, so first, turn your stovetop exhaust fan on high before you start heating the pan. Use a cast iron skillet (it holds consistent heat so you don’t need cranked max heat), open a nearby window, and apply butter directly to the protein instead of heating it in the pan.
5.Can I make my own blackening spice blend if I don’t have a pre-mixed Cajun seasoning on hand?
Absolutely! The core spices for this recipe are smoked paprika, garlic powder, and onion powder. Build out a classic blend by adding ½ tsp each of dried oregano, dried thyme, cayenne, black pepper, and kosher salt per 2 tbsp of smoked paprika for authentic, balanced Cajun flavor without a store-bought mix.
6.Why do you coat the protein in melted butter instead of heating butter in the pan first?
Coating fillets or chicken directly in melted butter before adding spices helps the rub stick evenly, and ensures milk solids are in direct contact with the spice blend to form that signature crisp, caramelized crust. If you heat butter in the pan first, it will burn quickly before you add protein, leading to bitter, off flavors.
7.How do I keep my fish from sticking to the pan when searing it for blackened fish?
First, make sure your cast iron or heavy-bottomed skillet is fully preheated before adding protein—if it’s not hot enough, fish will stick. Pat fillets completely dry with paper towels before coating in butter and spices, then don’t move the fillet for the first 3 minutes of searing so the crust can set and release naturally.
8.Is this recipe very spicy? Can I adjust the heat level for people who don’t like hot food?
The base blend here is smoky and deeply flavorful, not inherently fiery, since the core spices are smoked paprika, garlic, and onion powder. If you’re heat-sensitive, skip added cayenne or red pepper; if you love extra zing, stir in ¼ to ½ tsp of cayenne to the rub to dial spice to your preferred level.
9.How do I make sure my fish or chicken stays juicy instead of drying out during the high-heat sear?
Don’t overcook it! For fish, cook just until the flesh flakes easily with a fork, about 2-3 minutes per side for 1-inch thick fillets. For chicken, pound it to an even ½-inch thickness so it cooks fast without drying out, pull it at 165°F internal temp, and let it rest 2 minutes to lock in juices.
10.What are the best side dishes to serve with blackened fish or chicken for a full Cajun meal?
Classic, complementary pairings include creamy coleslaw, buttered corn on the cob, garlic roasted potatoes, red beans and rice, or a simple green salad with tangy vinaigrette. Cool, creamy sides balance the bold, smoky spice of the blackened crust perfectly, and most prep in the time it takes to cook the protein.

Comments (19)

2 days ago

OMG this blackened seasoning mix is a total game changer! I used tilapia for last night’s family dinner and even my super picky 7 year old cleaned his plate. 25 minutes total cook time? Perfect for busy weeknights when I don’t have hours to spend in the kitchen. 10/10 will be making this on repeat.

yesterday

Same! My kid turns his nose up at any fish that isn’t fried, but he asked for seconds of this last week. I sprinkled a little extra paprika for more smoke, chef’s kiss

yesterday

So happy to hear the whole family loved it! A little extra smoked paprika is such a great tweak, we love that idea for folks who love a deeper smoky flavor.

3 days ago

I meal prepped the chicken version for my work lunches this week and it’s SO good. Holds up perfectly in the fridge for 4 days, no weird soggy texture, and the spice level is just right without being overwhelming. Super easy too, I didn’t even have to run to the store for special spices, I had everything in my pantry already.

2 days ago

That’s awesome to hear it works for meal prep! The chicken holds up so well, we love slicing it up for salads or wraps too throughout the week.

1 week ago

Brought the blackened chicken bites to my neighborhood potluck last weekend and people were begging me for the recipe! I served it with a little side of remoulade for dipping and it was gone in 15 minutes flat. Easy, flavorful, total crowd pleaser. Will absolutely be making this for our next cookout.

5 days ago

I was nervous this would be too hot for my sensitive taste buds, so I cut the cayenne in half and it was perfect! Used cod for the fish version, cooked it in a cast iron skillet just like the recipe said, and it had that perfect crispy blackened crust without being burnt. So impressed with how simple this was.

3 days ago

Pro tip for fellow spice wimps: swap the cayenne for a little sweet paprika if you want zero heat at all! I did that last time and my toddler ate it no problem.

2 weeks ago

I grew up eating real Cajun food in Louisiana so I’m super picky about blackened recipes, and this one is legit! Got that perfect classic flavor, no weird added ingredients, works just as well on catfish as it does on chicken thighs. Only note is make sure your pan is HOT before you put the protein down, that’s the secret to that perfect crust.

1 week ago

Oh thank you for the hot pan tip! I tried blackening fish once before and the seasoning just stuck to the pan instead of the fish, I bet that was my problem.

1 week ago

You’re so right about the hot pan! That’s the non-negotiable trick to getting that signature crust without the seasoning sliding off. So glad this recipe felt authentic to you, that’s the highest compliment!

30 minutes ago

Made this with chicken breasts for dinner last night, served it with roasted broccoli and rice, and my wife said it’s better than the blackened chicken we get at our local Cajun spot. Wild that it only took 25 minutes total, I thought something that tasted that good would take way more effort. No notes, 10/10.

yesterday

So happy this recipe is naturally gluten free! I’ve been looking for easy weeknight proteins that don’t require weird specialty GF products, and this fits the bill perfectly. I made the fish version with salmon last night and the crust was crispy, the fish was flaky, total perfection.

2 hours ago

Love that it works for your dietary needs! It’s naturally gluten and dairy free as written, so it’s great for serving to groups with mixed food restrictions too.

1 week ago

Pro tip from someone who’s made this 4 times now: don’t move the fish/chicken around once you put it in the cast iron! Let it sit for the full 3-4 minutes per side and you get that perfect, crispy blackened crust that doesn’t flake off. I used this on mahi mahi for fish tacos last weekend and it was insane.

5 days ago

Wait how did you serve it for tacos? Did you add any slaw or sauce? I want to make this for taco night next week!

3 days ago

I did a quick cabbage slaw with lime and a little creole mayo, tossed it all on corn tortillas. Trust me, your taco night is gonna slap!

5 minutes ago

As a college student with basically zero cooking skills, this was so easy to pull off in my tiny apartment kitchen! I used cheap chicken tenders, mixed up the spice rub in a little bowl, cooked it in my cheap non-stick pan, and it tasted like restaurant food. Saved me so much money on takeout this week.

2 days ago

Made the blackened redfish version for date night last night and my boyfriend was convinced I ordered it from a fancy restaurant. Paired it with garlic butter pasta and roasted asparagus, and the whole meal was done in under 30 minutes. Felt like a total pro chef, no cap.

yesterday

Date night win! We love that this feels fancy enough for a special meal but is easy enough to pull off without any fancy skills or equipment. Great call pairing it with garlic butter pasta, that sounds delicious.

3 days ago

I upped the cayenne and added a little extra garlic powder and black pepper to the rub because I love that extra kick, and wow. Made the chicken version, sliced it up on a po boy with pickles and remoulade, and it was better than any po boy I’ve gotten down in New Orleans. Will be making this at least once a week from now on.

2 days ago

The remoulade pairing is chef’s kiss! I did that last time too, and even my dad who hates “fancy food” went back for a second sandwich.

yesterday

A po boy is such a perfect use for this blackened chicken! We love adding a few extra dashes of hot sauce to the rub too when we’re craving extra heat, sounds like you nailed it.

2 hours ago

Wait, can I make this in the air fryer? I tried it last night with chicken thighs, spritzed a little oil on them, cooked at 400 for 12 minutes flipping halfway, and it turned out perfect! That crispy crust was there, no smoking up my kitchen from a super hot pan. Total win for anyone who hates the smoke from stovetop blackening.

1 week ago

Made this with chicken tenders for my kids’ post-soccer practice dinner last night and they devoured it! I kept the spice super mild for them, served it with sweet potato fries and fruit, and there were zero complaints. Love that I can adjust the spice level for the kids vs the adults without making two separate meals.

5 days ago

Same! I make a batch of the mild rub for the kids and then sprinkle extra cayenne on mine and my husband’s portions. Game changer for busy school nights, no separate cooking required.

just now

I will say, open your windows when you cook this! I had my pan a little too hot and the smoking spices set off my fire alarm for 10 minutes, oops. But even with that chaos, the fish turned out incredible, so it was worth the minor panic. Just a heads up for other apartment dwellers like me!

5 days ago

This recipe is so budget friendly! I used frozen tilapia fillets that I had in the freezer, used spices I already owned, and the whole meal for 4 people cost me under $10. You can’t beat that for a tasty, healthy dinner that doesn’t break the bank. 10/10 for anyone grocery shopping on a tight budget.

3 days ago

That’s what we love to hear! Great cooking doesn’t have to be expensive, and using frozen fish is such a smart, budget-friendly swap that works perfectly with this method.

2 weeks ago

This is my new go-to high protein dinner! Chicken breast version is like 35g of protein per serving, low carb, super flavorful, so I don’t get bored eating plain grilled chicken every night. I’ve been making it every Sunday to pair with veggies and quinoa for my post-workout meals, and it’s made my meal routine so much easier.

1 week ago

Wait how do you keep the chicken breast from drying out? I always overcook mine when I try to get that blackened crust!

1 week ago

Great question! We recommend pounding the chicken breast to an even ½ inch thickness before cooking, so it cooks evenly without drying out while the crust forms. That should help you get juicy chicken every time!

yesterday

I’ve been making blackened fish for years, and this rub recipe is my new go-to. Perfect balance of paprika, garlic, onion, oregano, and cayenne, no weird extra fillers like some store-bought blackened seasonings. I mixed up a big jar of it to keep in my spice cabinet so I don’t have to measure every time I make this.

2 hours ago

That’s such a good idea! I always forget I can pre-mix the rub, that would cut down on weeknight cook time even more. Gonna mix up a jar tonight!

30 minutes ago

I’ve never cooked fish at home before because I was always scared I’d mess it up, but this recipe was foolproof! Used cod, followed the directions exactly, and it came out flaky, flavorful, with that perfect crispy crust. My roommate said it was better than the fish we get at our local seafood shack. So proud of myself!

5 minutes ago

That makes us so happy to hear! This recipe is totally beginner-friendly, and we’re thrilled it gave you the confidence to cook fish at home. Great job!

1 week ago

Made a big batch of the blackened chicken sliders for our college football tailgate last weekend and they were a massive hit. Topped them with coleslaw and pickles, served ‘em up on mini buns, and people kept coming back for more. Super easy to make ahead of time, travels great, perfect game day food.