Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Peel and chop the carrots and parsnips into uniform 1-inch pieces to ensure they roast evenly.
Place the chicken thighs, carrots, and parsnips in a large mixing bowl.
Drizzle with olive oil and sprinkle the turmeric, rosemary, garlic powder, sea salt, and black pepper over the top.
Toss everything thoroughly until the chicken and vegetables are well-coated in the golden spice mixture.
Spread the mixture in a single layer on the prepared baking sheet, ensuring the chicken pieces are not crowded.
Roast for 25-30 minutes, or until the chicken reaches an internal temperature of 165°F and the vegetables are tender and caramelized.
Remove from the oven and let the chicken rest for 5 minutes before serving to keep it juicy.