Baked Chicken with Fennel and Apples

Ingredients

• 1 whole chicken ((3 1/2 pounds), cut into 8 pieces and breasts halved crosswise)
• 2 fennel bulbs (, fronds removed, bulbs cut into 1-inch wedges)
• 4 shallots halved lengthwise or 2 onions (, quartered)
• 1/2 cup fresh sage leaves
• 3 tablespoons extra-virgin olive oil
• 2 tablespoons cider vinegar
• Coarse salt and ground pepper
• 2 apples (, cored and quartered)