Plum crop

We have a couple of plum trees in the garden, and this year they are producing a bumper crop.   Only one of the trees has ripe fruit so far; the others are a bit behind.   We have more plums than we can possibly eat, so a means of preserving them is needed.

Since I'm diabetic, jams don't work well for us.   We can preserve them in Cognac (done that before, works well), and make wine.   This year I'm trying the winemaking, for the first time with plums (the parsnip wine was barely drinkable, and only when laced liberally with cassis).