Heat the cranberries and OJ over medium heat. Put spices in spice bag and place in pan. (You don't have to have a spice bag, it just makes it easier to get them out at the end!)
Cook until cranberries begin to burst @10 minutes
Stir in sweetener and reduce heat to low, cooking until sugar is dissolved
Remove spices here
Cool overnight in the fridge
Note: serve warm or cold, whichever you prefer (I actually like it warm)