Okay, quick and easy. Cut the ribs into portion sizes that will fit into the crockpot. Wrap them up in cheesecloth. Put them into the crockpot, pour in a big can of pork & beans, and a bottle of your favorite store bought barbeque sauce. Turn on LOW and go away for 8 hours. Of course, if you're a purist, you can make your own beans, and your grandma's barbeque sauce from scratch, but if you had that kind of time, I don't think you'd need a crockpot!
If you're wondering about the cheescloth, it's to keep the meat and bones together and not mixed in with the beans and sauce, because the meat will literally be fall-off-the-bone tender.