Season the beef with salt and pepper. Spray a frying pan with low-calorie cooking spray and set on a medium heat. Add the beef and fry for 6-8 minutes until browned on all sides.
Add the beef to the slow cooker pot along with the onion, carrot, celery and garlic.
To the boiling water add the stock pot, tomato puree, cornflour, cranberry sauce, Henderson's relish and sweetener. Stir to combine and pour into the pot along with the chopped tomatoes and stir.
Press the cloves into the surface of the orange and nestle between the beef and veg. Add the cinnamon stick, star anise, thyme and rosemary.
Cover with a lid and cook on low for 4 hours until the beef is tender, vegetables cooked and sauce reduced. Remove the orange, cinnamon and star anise and discard. Season to taste with salt and pepper and serve with mashed potatoes or your choice of accompaniment.