I made Jam!
... Or maybe its more technically jelly. As it doesn't move much when I turn the jar upside down.
It spreads Ok and tastes quite good, if I do say so myself.
I got most of the seeds out, you can see the only one I think slipped through and I think that jar also has a few lemon pips in it too. Its made from the plums I posted here, well some of them.
I'll share the recipe sometime soon. I'm thinking a second try is in order.