Experience Grill Flank Steak in 30-Minute Teriyaki Bliss

Ingredients

• ½ cup soy sauce, low-sodium preferred
• ¼ cup mirin or rice vinegar
• 2 tablespoons brown sugar
• 1 tablespoon sesame oil
• 2 cloves garlic, minced
• 1 tablespoon grated fresh ginger
• 1.5 lbs flank steak, trimmed
• Salt and pepper, to taste
• 2 green onions, chopped (for garnish)
• Toasted sesame seeds, for garnish (optional)