This is a great recipe to use up any excess plums from a productive tree. In order to keep the jam full of chunky pieces of plum, this recipe ... The jam is best eaten within 1 year.

1.1 lbs of sugar. 1 lemon (just the juice, to intensify the flavor and help preserve). How to Make Plum Jam, Step by Step Preparing the plums: Wash the plums thoroughly, remove the pits ...