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The Ultimate Asian Soy Ginger Marinade for Searing Tuna Steak

A perfectly seared tuna steak, rare in the center, showcasing a dark, seasoned crust from the MARINADE FOR TUNA STEAK.

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Fix that bland, disappointing tuna steak! This foolproof Asian soy ginger marinade delivers deep flavor perfect for a quick sear. We tested the ratios so you get exceptional results every time.

Ingredients

Scale
  • 1/4 cup low-sodium soy sauce
  • 2 tablespoons sesame oil
  • 1 tablespoon fresh ginger, grated
  • 2 cloves garlic, minced
  • 1 tablespoon brown sugar
  • 1 teaspoon sriracha (optional, for heat)
  • 1 teaspoon cornstarch (for texture)

Instructions

  1. In a medium bowl, whisk together the soy sauce, sesame oil, grated ginger, minced garlic, brown sugar, sriracha (if using), and cornstarch until the sugar and cornstarch are fully dissolved. This is your **best marinade for searing tuna**.
  2. Place your tuna steaks (about 1 inch thick) into a resealable plastic bag or shallow dish.
  3. Pour the marinade over the tuna, ensuring both sides are coated.
  4. Seal the bag or cover the dish. Refrigerate for 20 to 30 minutes. Do not marinate longer than 30 minutes, as the soy sauce can begin to cure the delicate fish texture.
  5. Remove the tuna from the marinade and pat it very dry with paper towels before cooking. Discard the remaining marinade.
  6. Sear the tuna steaks in a very hot, lightly oiled pan for 1 to 2 minutes per side for rare to medium-rare.

Notes

  • For the best sear, make sure your pan is smoking hot before adding the tuna.
  • Patting the tuna dry after marinating is crucial; excess moisture prevents a good crust from forming.
  • This marinade works well for a quick, **healthy marinade for fresh tuna** preparation.

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