Stud the skin of the orange with the cloves.
Heat the orange juice and muscovado sugar in a pan until the sugar has dissolved.
Add the clove-studded orange along with the vanilla pod (if using), ginger, stick of cinnamon, star anise and the red wine.
Stir in the sloe gin and heat gently over a low heat for about 10 minutes.
Serve in glasses with a twist of orange peel and a cinnamon stick in each if you’ve got them to spare.
