The Best Way to Cook One-Inch Tuna Steaks

You can cook a one-inch tuna steak on the stovetop or grill.
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Got a hankering for fresh fish? You're in luck. One-inch thick tuna steaks can be perfectly cooked in just 10 minutes. And as long as it's very fresh, tuna can be served a little rare in the middle, which is ideal since the fish has a tendency to dry out if cooked for too long.


Much like a good sirloin or quality beef steak, tuna suits grilling or shallow frying in very hot oil. And for extra moisture and to add flavor to the fish, make sure to use a marinade.

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Things You'll Need

  • 2 one-inch thick tuna steaks

  • Paper towels

  • Plate

  • Small bowl

  • Olive oil

  • Salt

  • Pepper

  • Garlic salt

  • Dried onion powder

  • Cayenne pepper

  • Griddle pan

Cooking Instructions

  1. Wash both one-inch tuna steaks in fresh water to remove any scales or other debris.
  2. Lay both on a paper towel.
  3. Cover with another paper towel to soak up the water.
  4. Drizzle 2 tablespoons of olive oil into a small bowl.
  5. Grind pepper and coarse salt to taste.
  6. Add a pinch of garlic salt and a pinch of dried onion powder. (Optional: Add a little cayenne pepper if you like a hot kick to your grilled fish.)
  7. Coat each tuna steak in the oil marinade, rubbing it into both sides and the edges of the fish.
  8. Spray or brush a large griddle pan with olive oil. Heat the pan on the stove for about 2 minutes or until it reaches medium to high heat.
  9. Gently lay each tuna steak on the hot griddle pan. Let the fish sizzle and don't move it around in the pan.
  10. Cook for 2 minutes on the first side for a rare steak or 5 minutes for a medium one.
  11. Turn the steaks over and cook for the same amount of time as you cooked the first side. This ensures that the tuna steak is cooked evenly and seared well on both sides — particularly important with thick, one-inch tuna steaks.


Vary the taste of the tuna steaks with marinades. For example, use lime and soy for a sharp, East Asian taste, or try a tomato and basil salsa topping for a Mediterranean flavor.


Fresh tuna looks bright red and slightly translucent. Avoid dull, brown tuna steaks. Cook previously frozen tuna steaks all the way through the middle before eating to avoid food poisoning.

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