Preheat oven to 400°F (200°C). Pat chicken thighs completely dry with paper towels. Season both sides aggressively with kosher salt, coarse black pepper, garlic powder, and paprika.

Heat olive oil in a heavy 12-inch oven-safe cast iron skillet over medium-high heat. Place chicken thighs skin-side down and sear undisturbed for 7 to 8 minutes until the skin turns shatteringly crisp and deep golden-brown. Flip and sear for 2 minutes on the reverse side. Transfer chicken to a clean plate.

Pour off all but 1 tablespoon of rendered chicken drippings from the skillet. Add butter, halved shallots, and smashed garlic; sauté for 3 minutes until shallots begin to caramelize around the edges.

Add fresh cranberries, rosemary sprigs, balsamic vinegar, honey, orange zest, and Halal chicken broth. Scrape the pan bottom vigorously to dissolve all savory fond. Bring to a rapid simmer for 3 minutes until cranberries begin to burst and release their tart ruby juices.

Nestle seared chicken thighs skin-side UP back into the skillet between the bubbling cranberries and shallots (keep the crispy skin above the sauce level to maintain crispness). Spoon a little glaze over the meat around the sides.

Transfer skillet to the preheated oven and roast uncovered for 20 to 25 minutes until the chicken reaches an internal temperature of 175°F (79°C) and the glaze has reduced into a thick, glossy ruby sauce.

Remove from oven and let rest 5 minutes. Spoon glossy cranberry pan reduction over each serving, garnish with fresh rosemary sprigs, and serve hot from the skillet!