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Perfectly Seared Ahi Tuna Steaks

Slices of perfectly Seared Ahi Tuna, crusted with sesame seeds, showing a rare red center.

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Learn the simple technique to get a beautiful crust on sushi grade yellowfin tuna while keeping the center perfectly rare. This quick seafood recipe is healthy and flavorful.

Ingredients

Scale
  • 2 (6 ounce) sushi grade yellowfin tuna steaks, about 1 inch thick
  • 2 tablespoons sesame oil
  • 1 tablespoon soy sauce or tamari
  • 1 teaspoon grated fresh ginger
  • 1 clove garlic, minced
  • 1/2 teaspoon black pepper
  • 1/4 cup sesame seeds (mixed white and black, optional)

Instructions

  1. Pat the tuna steaks completely dry using paper towels. This step is key for a good sear.
  2. In a small bowl, whisk together the sesame oil, soy sauce, ginger, garlic, and black pepper to create the marinade.
  3. Place the tuna steaks in a shallow dish and pour the marinade over them. Turn to coat evenly. Let the tuna marinate for 10 minutes at room temperature. Do not marinate longer, as the soy sauce can begin to ‘cook’ the fish.
  4. If using sesame seeds, spread them out on a plate. Remove the tuna from the marinade, letting excess drip off, and gently press both sides of each steak into the seeds to coat them evenly. Discard the remaining marinade.
  5. Heat a heavy-bottomed skillet, such as cast iron, over high heat until it is very hot, almost smoking.
  6. Carefully place the coated tuna steaks into the hot, dry skillet. You should hear an immediate, strong sizzle.
  7. Sear the tuna for 60 to 90 seconds per side for rare, or up to 2 minutes per side for medium-rare. You are looking for a dark, crisp crust.
  8. Remove the tuna from the pan immediately. Let the steaks rest on a cutting board for 5 minutes before slicing.
  9. Slice the tuna against the grain into 1/4-inch thick pieces. Serve right away.

Notes

  • For the best results, use a high smoke point oil like avocado oil if you prefer not to use sesame oil for searing.
  • If you want a stronger crust, you can lightly dust the tuna with a mixture of salt and pepper before searing, in addition to the sesame seed coating.
  • This gourmet tuna pairs well with a simple soy-ginger dipping sauce.

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