Preheat your oven to 350°F (180°C).
Pat the chicken dry with paper towels.
Combine the brown sugar, paprika, salt, dried thyme, garlic powder, onion powder, and black pepper in a bowl. Pour the olive oil over it and mix well.
Line a baking sheet with parchment paper and place the chicken on it. Pour the spices over the chicken and rub them into the chicken, ensuring all surfaces are covered.
Bake for 40 minutes or until the chicken reaches an internal temperature of 175°F. Let the chicken rest for 10 minutes before serving.