Slice your orange into five. The middle three slices should be thick, these will go into the pan. You will need the juice from the two ends.
In a slightly warmed pan (careful it's not hot as your sugar will burn) add your cinnamon sticks star anise and clothes and allow them to warm for 30 seconds
Add your sugar and red wine. Give the pan a good stir until the sugar has dissolved
Squeeze the juice from the two ends of orange into the pan
Add the three slices of orange to the pan give it a stir and allow to simmer until the liquid has reduced by 50%.
Remove the orange slices and set aside, then add your cranberries. Give them a stir and return the sliced orange.
Cook until the mixture becomes thick and all of your cranberries have popped and broken down. This took around 15 minutes for me.
Remove the orange slices from the pan, they should just be the rinds now as the rest of the orange will of cooked into the sauce. This year I removed the cinnamon sticks as well as I froze my sauce. I didn't bother removing the additional spices.
Decant the sauce into a sterilise jar or a freezable tub (if you are making ahead). I froze mine in three and kept some in the fridge for the festive build up.If you are making this Christmas week you can store in the fridge for a week.