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blackened mahi mahi on a bed of white rice served with mango salsa on a white plate.
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5 from 1 vote

Blackened Mahi Mahi Recipe

This easy, Blackened Mahi Mahi is crusted with spicy seasonings, and baked on a sheet pan in the oven for just 10 minutes. It's just as healthy as it is satisfying - the perfect weeknight dinner recipe! Serve on a bed of white rice with refreshing mango salsa.
Prep Time5 mins
Cook Time10 mins
Total Time15 mins
Course: Main Course
Cuisine: Seafood
Servings: 4 people
Calories: 209kcal

Ingredients

  • 4 mahi mahi fillets 4-6 ounce portions
  • 1 tsp sea salt
  • 1 teaspoon chili powder
  • 1 teaspoon ground cumin
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon smoked paprika
  • ½ teaspoon black pepper
  • ¼ teaspoon cayenne pepper
  • ¼ teaspoon dried thyme
  • 2 tablespoon butter or extra virgin olive oil
  • 1 lime

Instructions

  • Prepare the seasoning mixture by combining the salt and dry spices in a bowl and set aside.
  • Preheat oven to 425°F. Pat each of the mahi mahi fillets dry using paper towels.
  • Season the mahi mahi by sprinkling a generous amount of the seasoning mixture over each fillet. As you're coating the fish, press down gently to make sure the seasonings stick and shake off any excess.
  • Place the mahi mahi on a baking sheet lined with parchment paper and bake for 10 minutes. When there are 2 minutes left (around the 8-minute mark), softly brush the top of each fillet with a little bit of olive oil. Close the oven and continue to bake for the remaining 2 minutes.
  • Remove the mahi mahi from the oven, add a squeeze of fresh lime juice, garnish with remaining lime slices and serve.

Notes

Other Cooking Methods:
  • Pan sear the mahi mahi in a large skillet with 2 tablespoons of melted butter for 3-4 minutes on each side. You'll need a metal fish spatula to flip the delicate fish.
  • Basting directions - cook it in a skillet without flipping it over and use a spoon to drizzle the melted butter over the fish as it cooks. Repeat this basting process for 7-8 minutes, making sure the mahi mahi is evenly coated. You'll need about 3-4 tablespoons of butter for basting.
Recipe Tips and Tricks:
  • To thaw frozen mahi mahi place the steaks in a bowl and thaw them overnight in the refrigerator. Firmly pat dry using paper towels to squeeze out all the water.
  • Bake 10 minutes for every 1-inch of thickness. In this recipe, I use 1-inch thick mahi steaks and bake them for exactly 10 minutes.
  • Wrap leftovers in plastic wrap or store in a plastic airtight container in the refrigerator for up to 3 days.

Nutrition

Calories: 209kcal | Carbohydrates: 4g | Protein: 32g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 139mg | Sodium: 786mg | Potassium: 771mg | Fiber: 1g | Sugar: 0.4g | Vitamin A: 823IU | Vitamin C: 5mg | Calcium: 45mg | Iron: 3mg