Squeeze juice from one of the oranges. Slice the other orange into rounds.
Add orange juice and rounds into a small Dutch oven or similarly heavy-bottomed pot.
Pour in the wine, then the brandy. Add 1 tablespoon of sweetener, then the cinnamon sticks, star anise and cloves.
Warm over medium heat until steaming. Reduce heat to low at first sign of bubbles.
Time to taste-test. If you want it sweeter, add another tablespoon of sweetener. If you want it spicier, keep cooking for 5-10 more minutes.
Serve in mugs garnished with cranberries and extra spices for a holiday-appropriate look.