Ingredients

• 1/2 cup soy sauce
• 1/4 cup rice vinegar
• 3 tbsp brown sugar
• 2 tbsp sesame oil
• 2 tbsp chopped fresh ginger
• 3 garlic cloves, minced
• 1 lime, juice
• 2 green onions, sliced
• 2 tuna steaks (4oz)
• 1/2 cup sesame seeds
• 1 tbsp vegetable oil

Preparation

In a small bowl, whisk together the soy sauce, rice vinegar, sesame oil, ginger, garlic, brown sugar, lime juice, and green onions. Pour half of the mixture over the tuna and cover with a lid. Refrigerate for at least 1 hour.
Once marinated, coat the tuna with sesame seeds. Discard the marinade that the tuna was marinating in.
In a nonstick skillet, heat the oil over medium-high heat. For rare tuna, cook for 2 minutes per side. For well-done tuna, after cooking it for 1 to 2 minutes per side, transfer it to a parchment-lined baking sheet and bake at 400ºF for 5 to 7 minutes, or until it is cooked to your liking.
Serve it immediately with the remaining marinade that was set aside.