1. 1. First, pat your chicken drumsticks dry with paper towels. This helps achieve a crispier skin on your teriyaki chicken drumsticks.

2. 2. Next, whisk together soy sauce, honey, rice vinegar, brown sugar, ginger, garlic, and sesame oil in a large bowl. This creates your amazing marinade for the teriyaki chicken drumsticks.

3. 3. Add the chicken drumsticks to the marinade, ensuring they are well-coated. Marinate for at least 30 minutes, or up to 4 hours in the refrigerator.

4. 4. Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.

5. 5. Arrange the marinated teriyaki chicken drumsticks in a single layer on the baking sheet.

6. 6. Bake for 25-30 minutes, flipping halfway through.

7. 7. While the chicken cooks, pour the remaining marinade into a small saucepan.

8. 8. In a separate small bowl, whisk together cornstarch and water to create a slurry.

9. 9. Bring the marinade to a simmer over medium heat, then slowly whisk in the cornstarch slurry. Cook, stirring constantly, until the sauce thickens to your desired consistency.

10. 10. Brush the thickened sauce generously over the partially cooked teriyaki chicken drumsticks.

11. 11. Return the chicken to the oven and bake for another 10-15 minutes, or until the chicken is cooked through and beautifully glazed. These teriyaki chicken drumsticks will look fantastic.

12. 12. Serve these incredible teriyaki chicken drumsticks immediately, garnished with sesame seeds and green onions if desired.