Steps
1. In a bowl, mix together ketchup, soy sauce, honey, garlic powder, salt, and pepper to create the marinade.
2. Coat the chicken thigh with the marinade, ensuring it's well covered. Let it marinate for at least 15 minutes.
3. Preheat the oven to 400°F (200°C).
4. Place the marinated chicken thigh on a baking sheet lined with parchment paper.
5. Bake for about 25 minutes, or until the chicken is cooked through and the skin is crispy.
6. Remove from the oven and let rest for a few minutes before serving.
7. Garnish with fresh parsley if desired.