Preheat the oven to 160C/140C Fan/Gas 3. For the pie filling, heat the oil in a large ovenproof casserole over a high heat. Season the beef and sear the steak in batches, until evenly browned.

It adds a lovely citrus zing to this rich curry and can be substituted with orange peel. Heat the oil in a large, heavy bottomed, non-stick saucepan. Add the whole spices (cinnamon, bay leaves ...