Mix everything together in a medium non-reactive pot.

Bring to a light boil over medium-high heat and let it boil, uncovered, for 30-50 minutes or until thick enough for your liking. Stir occasionally and pay close attention after 30 minutes. The longer it cooks, the more often you need to stir. The amount of time will depend on how juicy your peaches are.

When you think your jam is thick enough, continue boiling and put some of the jam on a clean spoon and then put the spoon on a plate in the freezer. Let it sit for five minutes and then take it out. If the jam falls easily off the spoon when you turn it to the side, it’s not ready and you should continue cooking for another 5 minutes and try the test again.

Let cool and then pour the jam into jars and store in the fridge and for up 1 week. Freeze any leftovers after that.