Ingredients

  • cooking spray
  • 1 tablespoon white miso paste
  • 2 tablespoons water, divided
  • 2 teaspoons grapeseed oil
  • 4 (4-ounce) fresh tuna steaks (about 1 inch thick)
  • 1 cup shaved shallots
  • 1 teaspoon sugar
  • 2 teaspoons wasabi paste
  • 2 tablespoons lime juice
  • 1 tablespoon soy sauce
  • 2 teaspoons freshly ground black pepper
  • 2 cups watermelon cut into 1-inch cubes
  • 2 tablespoons minced fresh chives

Method

  • Fire up your grill to high. Away from the heat, coat the grill grate evenly with cooking spray.
  • In a small bowl, combine the miso, 1 tablespoon of water, and the grapeseed oil.
  • Rub the tuna steaks evenly with the miso paste mixture.
  • Refrigerate, uncovered, for 15 minutes.
  • Combine 1 tablespoon of water, the shallots, the sugar, and the wasabi. Toss well and let marinate at room temperature, folding occasionally as the juices release from the shallots.
  • Combine the lime juice, the soy sauce, and the black pepper in a large bowl.
  • Add the watermelon to the lime-soy mixture and toss. Let rest at room temperature until ready to serve.
  • Grill the steaks, until only marked, about 45 seconds. The tuna for this dish is best served ultra-rare.
  • On a cutting board, with your sharpest knife, cut the tuna into 3/4-inch-thick pieces against the grain.
  • Gently fold the tuna into the watermelon salad.
  • To serve, lay a bed of the tuna and watermelon salad on each of 4 plates. Scatter the wasabi shallots on top, and sprinkle evenly with the chives.