They freeze exceptionally well. Simply rinse, pat dry, and store in an airtight freezer bag.
Simmer plums until they break down, puree, and process in a water bath for 10 minutes for long-term storage. 2. Crafting & DIY PLUM - Crazy
Boil pitted plums with water and sugar for 5–10 minutes until reduced. Sieve the mixture and sweeten with honey to taste. They freeze exceptionally well