Place a plastic screw-on lid made for canning jars on the jar and set it aside to cool.
Once the contents of the jar are cool to the touch, refrigerate it.
These cherries are tart - so pair them with whipped cream or a sweet dessert such as homemade ice cream.
If you wish to make a larger batch and preserve them, fill quart jars to 1/2 inch from the top and process the jars in a boiling water bath for 20 minutes.