Recipe courtesy of Food Network Magazine   Total Time: 40 min Prep: 10 min Cook: 30 min Yield:4 servings Level:Easy   Ingredients 8 skin-on, bone-in chicken thighs (2 to 2 1/2 pounds) Kosher salt and freshly ground pepper 2 tablespoons extra-virgin olive oil 1 large onion, cut into large chunks 2 cooking apples (such as Cortland),