01 - Set oven to 400°F (200°C) to ensure optimal roasting temperature.
02 - Pat dry chicken thighs with paper towels, then season both sides with salt and black pepper.
03 - Whisk together maple syrup, Dijon mustard, gluten-free soy sauce, minced garlic, apple cider vinegar, and smoked paprika in a mixing bowl until well combined.
04 - Place chicken thighs in a single layer in a large oven-safe skillet or baking dish. Pour glaze over chicken, turning each thigh to ensure even coating.
05 - Roast uncovered for 30 to 35 minutes, basting pan juices over chicken every 10 to 15 minutes, until chicken is golden and fully cooked through with an internal temperature of 165°F (74°C).
06 - Optional: Broil chicken for an additional 2 to 3 minutes until the skin is crisped to preference, keeping a close watch to avoid burning.
07 - Let chicken rest for 5 minutes after baking. Sprinkle with chopped fresh parsley before serving.