Preheat your oven to 400°F (207°C).
In a large mixing bowl, combine the chicken drumsticks with the hoisin sauce, soy sauce, sesame oil, and ground white pepper. Use your hands to coat the chicken evenly with the marinade.
Transfer the chicken to a baking tray lined with aluminum foil or parchment paper.
Place the chicken in the preheated oven and bake it for 30 to 35 minutes. Ensure the inside is thoroughly cooked and no longer pink.
Broil the chicken for 1 to 2 minutes after baking for a charred surface.
Remove the chicken from the oven and let it rest for a few minutes before serving.
Serve the Baked Hoisin Chicken immediately with your choice of sides.