01 - Preheat the oven to 400°F.
02 - In a large bowl, combine olive oil, sumac, cumin, smoked paprika, coriander, salt, and black pepper. Stir until a smooth paste forms.
03 - Add the chicken thighs to the bowl and turn to coat evenly, working the spice mixture under and over the skin.
04 - Scatter the sliced carrots, drained chickpeas, red onion, and minced garlic across the bottom of a roasting pan or large baking dish. Drizzle lightly with additional olive oil, season with a pinch of salt, and toss to combine.
05 - Place the seasoned chicken thighs skin-side up on top of the vegetable mixture in a single layer.
06 - Roast for 40–45 minutes until the chicken skin is deeply golden and crisp, the internal temperature reaches 165°F, and the carrots are fork-tender.
07 - Remove from the oven, scatter fresh parsley over the dish, and serve immediately with lemon wedges for squeezing.