In the evening, fill slow cooker with tiny plums.
Add water to 3/4 full.
Set at low overnight.
In the morning, remove pits with a food mill.
Return pulp to slow cooker.
Add some sugar if desired.
Add steeping bags with cinnamon, cardamon pods, and cloves.
Cook on low until desired consistency reached.
Remove spices. Add splash of vanilla.
Can in jars.