Spice up your seafood with our blackened Mahi Mahi recipe. A filet of fish topped with our homemade Cajun seasoning then cooked to perfection!
Are you craving a spicy seafood dinner? Well, my friend, then look no further.
Our blackened Mahi Mahi recipe features a meaty fish filet seasoned with Kim’s custom Cajun spice mix.
The spices add a ton of heat and flavor to an already delicious piece of fish.
It should be noted that this recipe is very spicy. In fact, it was a little too spicy for me.
If that concerns you, then consider omitting the cayenne pepper and reducing the black pepper in the Cajun seasoning mix.
If this recipe sounds too spicy, you may want to try our oven baked mahi mahi, sheet pan salmon, maple Dijon salmon or baked cod with panko.
How to make Cajun seasoning?
First, grab a small bowl and a whisk. Next, add the garlic powder, onion powder, smoked paprika, oregano, salt, thyme, black pepper, and cayenne pepper to the bowl.
Last, use your whisk to combine the ingredients. The spice mix can be stored in a sealed container, in your cabinet for up to 3-months.
How to make blackened Mahi Mahi?
Once you have the Cajun seasoning ready, it’s time to make the blackened Mahi Mahi. Start by patting the fish filet(s) dry with a paper towel. After that, sprinkle the seasoning onto the fish.
Be sure to sprinkle both sides of the meat and rub the seasonings into the filet(s).
Now, heat a large skillet over low-medium heat. Add the butter and oil to the pan and use a whisk or wooden spoon to combine the fats.
Afterward, place the Mahi Mahi into the pan. Let it cook for about 6-minutes on each side or until the fish is fully cooked through.
When it’s done, turn off the heat and serve the meat while it’s hot. That’s it, your blackened Mahi Mahi recipe is done! Kim and I hope you enjoy the dish 🙂
What side dishes go with this recipe?
Any of these sides will pair nicely with the spicy fish.
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- 2 teaspoons garlic powder
- 1 ½ teaspoons onion powder
- 1 ½ teaspoons smoked paprika
- 1 teaspoon oregano dried
- 1 teaspoon kosher salt
- 1 teaspoon thyme dried
- ½ teaspoon ground black pepper
- ¼ teaspoon cayenne pepper or to taste
- 1 pound mahi mahi fillets
- 2 tablespoons unsalted butter
- 2 tablespoons olive oil
- In a small bowl, combine the garlic powder, onion powder, smoked paprika, oregano, salt, thyme, pepper, and cayenne.2 teaspoons garlic powder1 ½ teaspoons onion powder1 ½ teaspoons smoked paprika1 teaspoon oregano1 teaspoon kosher salt1 teaspoon thyme½ teaspoon ground black pepper¼ teaspoon cayenne pepper
- Pat the fish filets dry with a paper towel, and sprinkle both sides with the Cajun seasoning mix. Rub the seasoning into the fish, and ensure the fish is evenly coated.1 pound mahi mahi fillets2 tablespoons unsalted butter2 tablespoons olive oil
- Heat a large skillet over low to medium heat. Add the butter and oil and use a wooden spoon or whisk to combine. Add the fish, and cook for 4 to 6 minutes on each side. The fish should be opaque and flake easily with a fork. An instant read thermometer should read 145°F when inserted into the thickest part of the filet.
- Remove the mahi mahi from the pan to a waiting plate. Serve hot with lemon wedges, a side salad, and rice.
Wednesday 30th of March 2022
HUGE hit with my family. Mahi Mahi is one of my daughters favorite restaurant dishes, and I've never tried until this recipe. Thank you!!
Wednesday 30th of March 2022
We're so glad you and your family enjoyed the fish! It's a favorite of ours, too. Have a great evening! :)
Wednesday 15th of December 2021
Wonderful! My husband said it was better than a fancy restaurant!