Cajun-spiced fish with a dark, flavorful crust
Blackened Fish
Prep Time
10 min
Cook Time
8 min
Total Time
18 min
Servings
4
4 fillets
Difficulty
Easy
Cost
Moderate
$$
Blackened Fish
Cajun-spiced fish with a dark, flavorful crust
★4.5(24)
White fish fillets coated in a bold Cajun spice blend and seared in a blazing hot skillet on the grill until the crust is dark and intensely flavorful. A Louisiana classic.
10m
Prep Time
8m
Cook Time
18m
Total Time
4
Servings
Easy
Difficulty
Moderate $$
Cost
Sarah Chen
(Updated )
Blackening was popularized by Chef Paul Prudhomme—a technique where heavily seasoned fish is cooked in a screaming hot cast-iron skillet. The spices char into a dark, flavorful crust in seconds.
Whether you are feeding a hungry family or hosting friends, this main course delivers the kind of satisfaction that keeps people coming back.
We developed this Blackened Fish recipe to be approachable without sacrificing depth of flavor. What sets a great main course apart is restraint — knowing when to stop adding and letting the core ingredients speak. This recipe strikes that balance, giving you bold flavor without unnecessary complexity or a mile-long ingredient list.
Ingredients
- 4 firm white fish fillets (redfish, snapper, or catfish)
- 2 tbsp Cajun or blackening seasoning
- 3 tbsp melted butter
- 1 lemon, halved
- 2 cloves garlic, minced
- Fresh parsley for garnish
Instructions
- 1
Heat a cast-iron skillet on the grill over high heat until smoking hot, at least 10 minutes.
- 2
Brush fish on both sides with melted butter, then coat generously with Cajun seasoning.
- 3
Place fish in the blazing hot skillet—it will smoke dramatically. Cook 2-3 minutes undisturbed.
- 4
Flip carefully and cook 2-3 more minutes until the crust is very dark and fish flakes easily.
- 5
Squeeze lemon over the fish and garnish with fresh parsley. Serve immediately.
Serving Suggestions
Ways to Serve This Dish
Serve with a fresh side salad for a balanced meal
Pair with your favorite grain or bread on the side
Garnish with fresh herbs for a beautiful presentation
Substitutions
RedfishCatfish, snapper, or tilapia
Any mild, firm white fish works for blackening
Cajun seasoningMix of paprika, cayenne, garlic powder, onion powder, thyme, and oregano
Homemade blend lets you control the heat
Heavy creamFull-fat coconut milk
Coconut milk provides a similar richness and body. The coconut flavor is subtle in savory dishes and largely disappears during cooking.
Tips & Storage
Pro Tips
Do this on the grill, not indoors—the smoke from blackening will set off every alarm in your house.
The skillet must be screaming hot—if it is not smoking, it is not ready.
Let the protein rest for 5-10 minutes after cooking to allow the juices to redistribute for maximum tenderness.
Season each component individually rather than seasoning at the end — this builds deeper, more complex flavor throughout.
Storage
Store leftovers in an airtight container in the refrigerator for up to 4 days. For longer storage, freeze individual portions in freezer-safe containers for up to 3 months. Label with the date and recipe name.
Reheating
Reheat in a hot skillet for 2 minutes per side to re-crisp the crust.
Recipe Notes from Our Kitchen
Editor's Note
Editor's note: This recipe is forgiving with timing — a minute or two extra will not ruin it. Focus on building good color during the sear and you are most of the way there.
Nutrition Facts
Per serving (75mg) · 4 servings
Calories240
LowModerateHigh
A moderate-calorie serving · based on a 2,000 cal daily diet
Protein30g
Carbohydrates12g
Fat2g
Fiber520mg
Sugar0g
Sodium0g
Nutritional values are approximate and may vary based on specific ingredients and preparation methods.
Frequently Asked Questions
- What is the difference between blackened and burnt?
- Blackening chars the butter and spices intentionally for flavor. Burnt means the food itself has overcooked.
- Can I blacken chicken or steak?
- Absolutely—the technique works on any protein with a flat surface.
- Can I double this recipe?
- Absolutely. Double all ingredients and use a larger pan or pot to ensure even cooking. Cooking time may increase by 10 to 15 minutes for a larger batch. Season to taste at the end since spice levels do not always scale linearly.
- How do I know when it is done?
- The best way to check doneness is with an instant-read thermometer. For poultry, aim for 165 degrees F at the thickest part. For beef and pork, 145 degrees F for medium. Visual cues include clear juices and no pink at the center.
About Sarah Chen
Sarah Chen is a professional recipe developer and food editor with over a decade of experience in test kitchens and food media. She trained at the Culinary Institute of America before spending six years developing and testing recipes for national food publications, where she honed her ability to translate restaurant techniques into approachable home cooking. At RecipePool, Sarah leads recipe development, ensuring every dish is tested at least three times for clarity, accuracy, and genuine deliciousness. When she is not in the kitchen, she is browsing farmers markets and collecting vintage cookbooks.
View all recipes →