Prepare the Chicken. Start by preheating your oven to 400°F. Pat the chicken dry with paper towels. Dry chicken will result in a better texture. Place the chicken in a baking dish.
Make the Teriyaki Sauce. In a small saucepan, combine soy sauce, brown sugar, minced garlic, grated ginger, honey, and rice vinegar. Bring to a boil over medium heat. In a small bowl, mix cornstarch with water to create a slurry. Add the slurry to the saucepan and stir until the sauce thickens.
Bake to Perfection. Pour half of the teriyaki sauce over the chicken in the baking dish. Bake in the preheated oven for 25-30 minutes, basting with the remaining sauce halfway through the cooking time. The chicken should be golden brown and cooked through.
Garnish and Serve. Once the chicken is cooked, transfer it to a serving platter. Sprinkle sesame seeds and chopped green onions over the top for a burst of color and added freshness.