Makes about one pint.

Note: If you want to jazz up the flavor, you can add chipotle chiles in adobo, cloves, a cinnamon stick or a vanilla bean while it cooks.

The key, that I’ve learned, is to not over cook it. But if you do, and the next day you find that you have a jar of rock-hard candy instead of jam, all is not lost! You can place the jar into a pot of water and let it come to a boil. The jam will heat up and become liquid, and then you can slowly add more water to it until it’s more runny. Try the freezer test again and then repack it. (This is how I eventually saved my sour-cherry jam).