Prepare 12 Blend Soup Mix according to on-pack preparation instructions
Heat half the oil in a large pot and add lamb shanks, cooking until seared all over. Remove from pot. Pour in remaining oil and cook onion, celery and garlic, cooking until onion is just tender. Stir in spices and cook for a further minute.
Return shanks to the pot with the stock, water and thyme. Bring to the boil and simmer partially covered for approx. 1 hour. Add 12 Blend Soup Mix and pumpkin, cook a further 30-45 minutes until meat is falling from the bone.
Take shanks from the pot and remove meat from the bones. Shred or dice and return to the pot. Season to taste and serve with parsley and crusty bread.