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Blackened Mahi Mahi with Homemade Seasoning

Course: Main Course, Meals
Cuisine: American
Keyword: seafood
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes
Servings: 6
Calories: 141kcal
Author: Bella
Why not have Cajun seasoned fish on the menu this evening? Blackened mahi mahi with homemade seasoning is a great protein to fry in your cast iron skillet. It's so easy to prepare and cook and you will love the perfectly balanced mahi rub flavours.
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  • 4 Mahi filets
  • 1 lime
  • 2 Tablespoon coconut oil

Blackened Seasoning

  • ½ Teaspoon paprika
  • ½ Teaspoon cumin
  • ½ Teaspoon garlic powder
  • ½ Teaspoon onion minced
  • ¼ Teaspoon thyme
  • ¼ Teaspoon pepper
  • ¼ Teaspoon sea salt
  • ¼ Teaspoon chili powder


  • Preheat a cast iron skillet over medium/high heat.
  • Use a paper towel to blot the Mahi Mahi filets dry.
  • Combine ingredients for blackened seasoning in a bowl or ramekin. Mix well, then evenly spread onto a plate.
  • Juice the lime and brush both sides of the filet with the lime juice. This will give a tangy taste and help the seasoning to adhere.
  • Dip both sides of the Mahi Mahi into the seasoning to thoroughly coat.
  • Add coconut oil to the hot skillet. Swirl to coat the pan.
  • Next, add mahi mahi. Cook for 5 minutes per side.
  • The blackened seasoning will form a dark crust on the filets. Check to be sure the fish is cooked by using a meat thermometer (mahi mahi safe temp is 135 degrees F to 145 degrees F), or that it is opaque and flakes easily.
  • Serve with lime wedges and garnish with cilantro.


Calories: 141kcal | Carbohydrates: 2g | Protein: 21g | Fat: 5g | Saturated Fat: 4g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 0.5g | Cholesterol: 83mg | Sodium: 199mg | Potassium: 493mg | Fiber: 0.4g | Sugar: 0.2g | Vitamin A: 254IU | Vitamin C: 4mg | Calcium: 24mg | Iron: 2mg
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The nutrition information provided are only estimates based on an online nutritional calculator. I am not a certified nutritionist. Please consult a professional nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.