Here's how to create the amazing Baked Honey Mustard Chicken:

1. Preheat the Oven: Set your oven to 375°F (190°C).
2. Prepare the Marinade: In a bowl, whisk together honey, Dijon mustard, olive oil, apple cider vinegar, garlic powder, onion powder, salt, and pepper until smooth.
3. Marinate the Chicken: Place the chicken breasts in a baking dish and pour the marinade over them, ensuring each piece is coated well. Let it sit for about 15 minutes (or longer for more flavor).
4. Arrange in Baking Dish: If you marinated longer, transfer the chicken to a clean baking dish. Pour any remaining marinade on top.
5. Bake the Chicken: Place the dish in the preheated oven and bake for 30-35 minutes, until the chicken is cooked through and the inside reaches an internal temperature of 165°F (74°C).
6. Broil for Extra Flavor: For a caramelized finish, switch to broil for the last 2-3 minutes. Keep a close eye to avoid burning.
7. Rest the Chicken: Remove from the oven and let the chicken rest for a few minutes before slicing. This will help retain the juices.
8. Garnish and Serve: Sprinkle with fresh parsley if desired and serve warm.