WOW! I kept going with my grape/rosemary obsession and ended up with this unbelievably good compote. It is SO, so good. I'm not going to try and preserve it because I'm not confident about the acid level, but I think freezing it would work well. I'll try and let you know, if it lasts long enough in my fridge. All the while I was cooking it, I envisioned it as a star at any Thanksgiving table. Don't Concord grapes just scream New World to you? In any case, this would also be delicious with any grilled or roasted meat and also, I suspect, with polenta topped with melting taleggio. Have mercy. Recipe will be posted momentarily!