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Perfectly Seared Ahi Tuna Steaks

Four slices of perfectly Seared Ahi Tuna, crusted with black and white sesame seeds, resting on a white plate.

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Learn how to quickly sear sushi-grade Ahi tuna to achieve a flavorful crust and a rare, cool center. This is a quick seafood recipe perfect for a healthy dinner.

Ingredients

Scale
  • 2 (6-ounce) sushi-grade Ahi tuna steaks
  • 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 black and white)

Instructions

  1. Pat the tuna steaks completely dry using paper towels. This step is crucial for a good sear.
  2. In a small bowl, whisk together the sesame oil, soy sauce, ginger, minced garlic, and black pepper. Brush this mixture evenly over all sides of the tuna steaks.
  3. Place the sesame seeds on a shallow plate. Press each side of the tuna steaks into the seeds until they are fully coated.
  4. Heat a heavy-bottomed skillet, such as cast iron, over high heat until it is very hot, almost smoking.
  5. Carefully place the coated tuna steaks in the hot, dry skillet. Sear for 60 to 90 seconds per side for rare, or up to 2 minutes per side for medium-rare. Do not move the tuna while searing.
  6. Remove the tuna from the skillet immediately. Let the steaks rest on a cutting board for 5 minutes before slicing against the grain into 1/4-inch thick pieces.

Notes

  • For best results, use yellowfin or bigeye tuna that is truly sushi grade.
  • If you prefer a dipping sauce, mix 2 tablespoons soy sauce with 1 teaspoon rice vinegar and a pinch of red pepper flakes.
  • Slicing the tuna thinly against the grain makes it easier to eat and improves texture.

Nutrition