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This recipe is so delicious! I baked it for dinner and my husband loved it!  Thank you for such an easy recipe! 

Ivette

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Mahi mahi with a blackened crust on a plate. this recipe

Related –> If you like this recipe, be sure to check out more of our easy seafood recipes, including this quick & easy blackened shrimp.

How to cook blackened mahi mahi on the stovetop

Cooking this recipe on the stove top is really, really easy! And fast!

  1. Mix up the easy homemade cajun seasoning mix and cover the mahi mahi all over with the seasoning.
  2. Heat up a skillet to medium high heat with oil and let it get nice and hot.
  3. Add the fish in and let it cook undisturbed for about 4 minutes to develop a nice, blackened crust. This part is important! Don’t touch it until the crust develops.
  4. Flip the fish and cook it on the other side until it is cooked through and opaque throughout.

That’s it! Serve the mahi mahi with any side, we love it with these sautéed mushrooms and asparagus!

Angled image of two pieces of blackened mahi mahi on a plate. The piece in the front is in focus while the other piece is blurry in the background.

Can you bake this mahi mahi recipe instead of frying?

After testing both, we prefer to make blackened mahi mahi on the stovetop to get a nice “crust” on the fish, but you can absolutely make this recipe in the oven! It comes out delicious!

Just season the fish as noted in the recipe and bake it in the oven at 400° Fahrenheit for 14-16 minutes. Different sized fillets will cook differently, so adjust the cooking time as needed if you are using larger or smaller fillets.

Overhead shot of a bowl with rice, one piece of blackened mahi mahi and a mango slaw on top.

We hope you love this recipe as much as we do!

Don’t forget to leave a quick star rating and review below, we read every comment and truly appreciate your feedback. Also, be sure to browse the rest of our easy, delicious seafood recipes to find some other favorites too!

Close up shot of blackened mahi mahi in a bowl over rice and topped with mango slaw.
5 from 23 ratings
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The Best (15-Minute!) Blackened Mahi Mahi

Prep: 5 minutes
Cook: 10 minutes
Total: 15 minutes
Servings: 4
Perfectly flaky and never dry, this easy recipe for blackened mahi mahi comes together quickly and the fish turns out smoky, savory, and so good! Serve with any veggies, over rice or pasta or make yourself some spicy fish tacos!
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Ingredients

  • 4 mahi mahi fillets
  • 2 tbsp avocado oil, (or butter or ghee)
  • 1 lemon, cut into wedges

For the cajun seasoning mix:

  • 1 tsp garlic powder
  • 1 tsp smoked paprika
  • 1/2 tsp dried oregano
  • 1/2 tsp onion powder
  • 1/2 tsp dried thyme
  • 1/4 tsp sea salt
  • 1/4 tsp ground pepper
  • Cayenne, to taste, (optional)

Instructions
 

  • Combine all of the cajun seasoning mix ingredients in a small bowl and set aside.
  • Pat fish dry with a paper towel. Season filets liberally with the seasoning mixture, patting it in to the fish.
  • Heat a large skillet over medium-high heat and add oil to the pan. Once hot, add fish to pan and let cook undisturbed for 3-4 minutes until a crust forms on the underside.
  • Flip and continue to cook undisturbed until fish is opaque and cooked through (another 2-5 minutes, depending on the size of fillets).
  • Remove from heat and serve. Squeeze fresh lemon juice over fish.

Last Step:

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Notes

Nutrition amounts noted are per serving and are an estimate provided for those following a Ketogenic or low-carb diet. See our full nutrition information disclosure here.
Calories: 212kcal, Carbohydrates: 1g, Protein: 32g, Fat: 8g, Saturated Fat: 1g, Fiber: 0.5g
Course: Main Course
Author: Erica Winn
Cuisine: Cajun
Did you make this recipe?Tag @realsimplegood with hashtag #realsimplegood on Instagram. We love to see what you make!
Vertical collage with text overlay in the middle. Top image is an angled shot of one piece of blackened mahi mahi on a plate. Bottom image is an overhead close up shot of a piece of mahi mahi.
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