Serves 4, can be doubled
1 teaspoon ground coriander
1 teaspoon ground cumin
½ teaspoon cayenne pepper
1 3½–4-pound chicken, halved
Kosher salt, freshly ground pepper
1 tablespoon vegetable oil
½ fresh pineapple, sliced ½ inch thick
1 jalapeno chile, sliced, seeds and membrane removed for less heat
2 garlic cloves, crushed
¾ cup pineapple juice
¼ cup apple cider vinegar
2 tablespoons light brown sugar
1 tablespoon paprika
Place a rack in upper third of oven; preheat to 425°. Mix coriander, cumin, and cayenne in a small bowl. Sprinkle chicken with spice mixture, pressing to adhere; season with salt and pepper.
Heat oil in a large ovenproof skillet over medium-high. Cook chicken, skin side down, until browned and beginning to crisp, about 5 minutes. Transfer chicken to a plate and arrange pineapple slices in pan. Place chicken, skin side up, on top. Transfer to oven and roast until an instant-read thermometer inserted into the thickest part of thigh registers 165°, 40–45 minutes.
Meanwhile, bring jalapeno chile, garlic, pineapple juice, vinegar, brown sugar, and paprika to a boil in a small saucepan and cook until thickened and syrupy, 12–15 minutes; season glaze with salt.
When chicken is done, brush with glaze and roast just until glaze is bubbling, about 2 minutes; repeat with any remaining glaze. Transfer chicken and pineapple to a cutting board; let rest 10 minutes. Serve chicken and pineapple with any juices from skillet alongside.