We have a ton...our tree, which is a purple skinned, red fleshed, non-freestone variety (nice flavor, a little too sweet, pain to pit) and an Italian prune tree is coming on. I'm a competent canner and have a dehydrator.
I've made plum jam-surprisingly fabulous, but still have some left so won't make a ton more-plum chutney and Asian plum sauceh-both meh. Tried a pate de fruits with plums and it never set up, so would love a good recipe for something like that. If all else fails, I'll make a bunch of fruit leather and dry the Italian prunes, but was looking for something more interesting this year.