Here is the recipe I followed.
this website to learn more.
I had about 4 pounds of plums and used about 3 cups sugar and fresh lemon juice. I could have used less as I enjoy some tartness. But this turned out good. I canned 3 and 1/2 pints and had another pint left for the refrigerator.
Rustic Loaf at our local farmers market.
Now time to try to make some umeboshi.
Supposedly it clears up a hangover right away. Imagine what it could do for those with MS!