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Grilled Blackened Tuna Steaks


Make your own blackened tuna steaks at home with this easy recipe. Serve rare and sliced thin for appetizer or dinner.

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Rate this recipe 3.9/5 (73 Votes)


  • 4 tuna steaks
  • Cooking spray
  • 2 tablespoons paprika
  • 1 tablespoon oregano
  • 1 tablespoon thyme
  • 1 teaspoon cayenne pepper (more or less depending on taste, 1 tsp. is medium spicy)
  • 1 1/2 teaspoon black pepper
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon kosher salt


Servings 4
Preparation time 10mins
Cooking time 20mins
Adapted from


Step 1

Make the blackened seasoning. Mix the paprika, oregano, thyme, cayenne pepper, black pepper, onion powder, garlic powder and salt in a shake top bottle, or small bowl.

Preheat grill to high. Coat all sides of tuna steaks in a thick coating of blackening seasoning, pressing into the flesh of the fish.

Spray one side with cooking spray. Place sprayed side down on grill grates. Close lid and cook 1-2 minutes. Open lid, spray other side of fish and flip. Cook 1-2 minutes more. Tuna is finished when outside edges are cooked but middle is still rare.


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