Step 1

Wash and cut the plums into chunks, removing the pits.

Step 3

Combine the plums, water, lemon juice and sugar in a large saucepan. Bring to a boil to dissolve the sugar, stirring continuously.

Step 5

Continue to stir for 15-20 minutes, or until the gelling point has been reached.

Step 7

Remove from the heat and ladle into glass mason jars. Proceed with the boiling water canning method, if desired. If not, store the plum jam in the refrigerator.