01 - Set the oven to 425°F and allow it to fully preheat.
02 - Pat the chicken thighs dry with paper towels and season both sides evenly with salt and black pepper.
03 - Warm olive oil in a large ovenproof skillet over medium-high heat until shimmering.
04 - Place chicken thighs skin-side down in the skillet and cook undisturbed for 7 to 8 minutes until skin is golden and crisp.
05 - Distribute fresh rosemary sprigs, smashed garlic cloves, and lemon zest around the chicken in the skillet.
06 - Transfer the skillet to the preheated oven and roast for 20 to 25 minutes until the internal temperature reaches 165°F.
07 - Let the chicken rest for 5 minutes before serving. Garnish with additional rosemary and lemon wedges if desired.