5 8 oz jars
Wash and dry the plums. Pit them and cut them around the seed.
Toss the chopped plums with sugar in the cooking pot of the Instant Pot.
Turn on Saute and let is sit for 2-3 minutes stirring once in between. Within minutes, you’ll have enough liquid in the pot. Cancel Saute.
Pressure Cook for 1 min at high pressure. Let the pressure release naturally for 10 minutes. Release the remaining pressure manually.
Turn on Saute and let the jam reduce down to a thick spreadable consistency. Using a potato masher, break down the plums. Stir every 5-7 minutes to prevent the jam from sticking at the bottom.
Cancel Saute once the jam reaches a thick but pourable consistency and coats the back of a spoon.
Let the jam cool down completely before adding to jars. If preserving for longer, use the canning procedures by your preferred brand.