Make plum season last for months by making this jammy, old-fashioned mixed fruit plum conserve.

Use tart plums or pluots, orange slices, raisins, chopped walnuts.

What Is a Conserve?

Plum Conserve Jam

Elise Bauer

Love Jam?

Plum Conserve Jam

This recipe comes from Simply Recipes reader Lou Grubaugh.

The water should cover the tops of the jars by at least 1 inch.

Plum Conserve

Elise Bauer

Cover, bring the water to a rolling boil, and boil for 10 minutes.

Wash the lids in hot, soapy water.

Put the plums, sugar, orange, lemon, and raisins into a large 6 or 8-quart pan.

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Elise Bauer

Gently boil for 20 to 25 minutes, stirring frequently, or until the mixture starts to thicken slightly.

If you want, use kitchen shears to cut some of the longer citrus rinds.

Wipe the rims clean with a clean, wet paper towel.

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Elise Bauer

Place the lids on the jars, securing with jar rings (do not over-tighten).

Bring to a rolling boil, then boil the jars for 5 minute.

Remove the jars with the jar lifters and set on a clean kitchen towel.

Allow the jars to sit overnight.

You will hear them make a popping sound as a vacuum seal is created.

Simple Tip!

The sealed jars will keep in a cool, dark place for at least 1 year.

Refrigerate opened jars and use within a few months.