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.
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 🙂
Recipe Card with Ingredient Amounts and Instructions
- 2 teaspoons garlic powder
- 1 ½ teaspoons onion powder
- 1 ½ teaspoons smoked paprika
- 1 teaspoon dried oregano
- 1 teaspoon salt
- 1 teaspoon dried thyme
- 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 dried oregano1 teaspoon salt1 teaspoon dried 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.