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Blackened mahi mahi pairs well with treated greens.

Blackened Mahi-Mahi

Tressa Jamil
Blackened mahi mahi is the perfect way to spice up your dinner rotation. Homemade blackened seasoning adds incredible flavor to fish that's ready and on the table in under an hour!
5 from 1 vote
Prep Time 5 mins
Cook Time 15 mins
Total Time 20 mins
Course Main Course
Cuisine American, Cajun, Creole
Servings 4 people
Calories 188 kcal




  • Salt the defrosted filets and let them sit for 5 minutes. Then, pat them dry with a towel to remove excess moisture.
  • Lightly coat them with melted butter using a pastry brush.
  • Combine the ingredients for the blackened seasoning in a small bowl and generously cover both sides of the fish.
  • Warm avocado oil in a cast-iron skillet over medium heat until it begins to smoke.
  • Once heated, carefully add 1-2 filets to the pan to cook for 3-4 minutes on each side. Cooking time may vary depending on the thickness of the filet. Repeat with the remaining filets (see note).
  • Garnish with fresh lemon and serve with salad, rice, or pilaf.


Cooking Tips: 
  • The key to a well-seared fish is a well-coated, hot pan. Warm a cast-iron skillet on medium and give it time to heat up before cooking the fish. 
  • Mahi-mahi is versatile and cooks well, but it's still a lean fish; they will dry out if they overcook, and no one wants that.
  • When the fillet easily releases from the pan, it is done cooking. If it sticks, it's not quite ready. Give it more time. Use a food thermometer to check the temperature; the safe internal temperature for mahi-mahi is 137° F (58° C).
  • Speaking of hot- there could be a lot of smoke!! Do yourself a favor and turn on your exhaust fan. I often remember when it's already too late. 
Nutrition Disclosure:
  • The nutritional information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for professional advice.
Web Story:
  • Check out our web story for pan-seared blackened mahi-mahi!


Serving: 1 FilletCalories: 188kcalCarbohydrates: 4gProtein: 22gFat: 9gSodium: 1133mgFiber: 2g
Keyword blackened mahi mahi, blackened mahi mahi recipe, pan seared mahi mahi
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