Peal an apple, cut in 6. Heat butter in pan, when hot add apples slices, give light color. Add sugar. When apple gets golden, remove from pan and keep aside. Cook the pork in same pan till half cooked pork. Deglacer with cider, add apple juice, chicken stock, cinnamon, salt and pepper (if necessary) When pork is cooked well, remove from the pan and let sauce reduce. Plate pork and place apples round the side. Poor the sauce over the pork and serve hot