“Whiff of Autumn” shoulder of lamb, with cumin-orange mashed sweet potato and minted spicy corn relish

Lamb 1/2 shoulder of lamb (bone in) 1 yellow onion, peeled and quartered 2 cox apples, peeled and quartered 8 cloves garlic, peeled few cloves stick cinnamon 2 dried red chilies (if I had them I would have used chipotle) few sprigs rosemary 2 fresh bay leaves 1-2 teaspoons ground cumin 1 teaspoon dried oregano …