Pour the wine, honey, orange juice and ground cinnamon into the slow cooker and use a silicon whisk (most slow cookers are non-stick) to gently whisk it all together. Add in the cinnamon sticks, cloves and star anise. Put on a lot heat for 50 minutes.
Stir in the brandy and let it heat through for about 10 minutes.
Serve in glasses or mugs garnished with orange slices and cinnamon sticks.