Add the garlic and kale and toss via for two minutes. Add a ladle of the mutton inventory and gently simmer for 5 minutes.9. To serve, just place a mutton shank on each plate, with a little champ and curly kale on the side and the sauce poured over. Heat a flameproof casserole and add the oil, then put within the shoulder and sear to brown it on all sides.