Rolled and Roasted Pork Loin with Apples, Walnuts, Truffle and Kale Preparation time: 20 minutes Cooking time: 2½ hours Serves: 6-8 1.6kg boneless pork loin, skin on Sea salt flakes and freshly-ground black pepper 1 bunch cavalo nero ¼ cup extra virgin olive oil 500g walnuts, toasted and chopped 8 cloves garlic, minced 2 tsp…