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Simple Soy-Citrus Marinade for Tuna Steaks

Four thick slices of perfectly seared tuna steak resting in a dark marinade, topped with fresh green chives.

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A quick, flavorful marinade that keeps your tuna steaks tender and tastes restaurant-quality, perfect for grilling or pan-searing.

Ingredients

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  • 1/4 cup low-sodium soy sauce
  • 2 tablespoons fresh lime juice
  • 1 tablespoon olive oil
  • 1 tablespoon brown sugar
  • 2 cloves garlic, minced
  • 1 teaspoon grated fresh ginger
  • 1/2 teaspoon black pepper

Instructions

  1. In a medium bowl, whisk together the soy sauce, lime juice, olive oil, brown sugar, minced garlic, grated ginger, and black pepper until the sugar dissolves. This is your easy fish marinade.
  2. Place your tuna steaks in a resealable plastic bag or a shallow dish.
  3. Pour the marinade over the tuna steaks, ensuring they are fully coated.
  4. Seal the bag or cover the dish. Marinate in the refrigerator for 20 to 30 minutes. Do not marinate longer than 30 minutes, as the citrus can begin to cure the fish.
  5. Remove the tuna from the marinade and pat dry with paper towels before cooking. Discard the remaining marinade.

Notes

  • For grilling, cook over medium-high heat for 2 to 3 minutes per side for medium-rare.
  • If using a cast-iron skillet, heat the pan until very hot before adding a thin layer of high-heat oil. Sear for 1.5 to 2 minutes per side.
  • Internal temperature for medium-rare tuna steak is 125°F.

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