Prepare the Lamb
Trim excess fat from the leg of lamb, leaving some for added flavour. Wash the lamb thoroughly.
Season both sides generously with salt and pepper, rubbing it into the meat as though giving it a massage.
Make small incisions all over the lamb. Insert a quartered piece of garlic and a small sprig of rosemary into each incision.
Marinate the Lamb
In a bowl, combine oregano, Kashmiri chilli powder, ground coriander, plain yoghurt, crushed garlic, and olive oil.
Place the lamb on a large sheet of cling wrap. Coat the lamb thoroughly with the marinade, ensuring it’s evenly covered on all sides.
Wrap the lamb tightly in the cling wrap and refrigerate overnight (or up to 48 hours for maximum flavour).
Prepare the Veggies and Stock
In a large oven tray, layer the halved garlic bulb, carrots, onion, and fresh thyme.
Set aside ½ of the prepared stock. Use a meat injector syringe to inject the remaining stock into 4–5 places in the lamb. This keeps the meat moist and enhances its flavour.
Slow Roast the Lamb
Place the marinated lamb on top of the veggies. Pour 3½ cups of stock into the tray. Cover the tray tightly with foil and poke 6 small holes into the foil for ventilation.
Slow roast in a preheated oven at 145°C for 4 hours and 15 minutes.
Roast for Colour
Carefully remove the foil and increase the oven temperature to 180°C. Roast the lamb uncovered for an additional 30 minutes to achieve a beautiful golden colour.
Rest and Serve
Remove the lamb from the oven, cover with foil, and let it rest for 30 minutes.
Transfer the lamb to a serving platter and drizzle it with some of the reserved stock. Sprinkle with fresh parsley.
Shred or slice the lamb as desired and serve with your favourite sides.