Ingredients

  • 3 or more plump garlic cloves, thinly sliced (2 tablespoons slices)
  • 1 teaspoon coarse sea salt or kosher salt, plus more for finishing
  • 1/2 teaspoon freshly ground black pepper
  • 6 tablespoons extra-virgin olive oil
  • 6 tuna steaks, cut 1 1/2 inches thick, about 8 ounces each
  • 1 1/2 teaspoons dried oregano
  • A gas or charcoal grill, with a clean grill rack

Method

  • For the marinade, stir the sliced garlic, salt, and pepper into the olive oil, and let sit for 30 minutes to an hour.
  • Spoon off and reserve 2 tablespoons of the infused oil.
  • Place the tuna steaks on a large platter, and pour the remaining marinade over, turning the steaks so both sides are coated.
  • Marinate the tuna for 2 to 3 hours, flipping them over two or three times.
  • Light your grill, and heat the rack over a medium flame or bed of charcoal.
  • Drain the marinade from each piece of tuna, and lay it on the grill.
  • Sear for about 2 minutes, and flip the steaks with a spatula.
  • Grill the second side for 2 minutes, turn the steaks again, and check for doneness by slicing into a steakthe flesh should not be fully cooked.
  • Remove to a platter where the fish will continue to cook off the grill.
  • Stir the oregano into the remaining 2 tablespoons of garlic-infused oil, and immediately brush on top of the tuna.
  • Sprinkle over it some coarse salt.
  • Let the tuna rest for a minute before serving.