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Grilled Ahi Tuna with Ponzu-Lime Marinade on platter.
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Grilled Ahi Tuna with Ponzu-Lime Marinade

Prep Time10 minutes
Cook Time10 minutes
Marinate Time15 minutes
Total Time35 minutes
Servings: 4

Ingredients

  • 2 tablespoons avocado oil, plus more for cooking 
  • ¼ cup tamari
  • 2 tablespoons ponzu
  • ½ serrano thinly sliced
  • 1 teaspoon freshly grated ginger
  • 1 garlic clove grated
  • 1 green onion thinly sliced
  • 2 tablespoons minced cilantro
  • Zest of ½ lime
  • 2 tablespoons lime juice
  • 4 ahi tuna steaks about 6 ounces each and 1 to 1½ inches thick
  • 1 teaspoon kosher salt

Instructions

  • In a small bowl, whisk together the avocado oil, tamari, ponzu, serrano, ginger, garlic, green onion, cilantro, lime zest, and lime juice.
  • Reserve 4 tablespoons of the marinade and set aside for drizzling when serving.
  • Place the tuna steaks in a shallow dish or zip-top bag and pour the remaining marinade over them. Marinate for 15–30 minutes max, turning once halfway through.
  • Preheat a grill or grill pan over high heat. Lightly oil the grates or pan.
  • Remove the tuna from the marinade and gently pat dry. Season both sides of the tuna steaks evenly with salt.
  • Sear the tuna steaks for 1 to 1½ minutes per side, just until a golden crust forms. The center should remain raw and bright pink.
  • Slice the tuna and serve immediately as desired, drizzled with the reserved marinade.

Nutrition

Calories: 323kcal | Carbohydrates: 3g | Protein: 41g | Fat: 15g | Saturated Fat: 3g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 8g | Cholesterol: 65mg | Sodium: 1050mg | Potassium: 482mg | Fiber: 0.3g | Sugar: 0.5g | Vitamin A: 3758IU | Vitamin C: 3mg | Calcium: 21mg | Iron: 2mg