With the rest of that garlic spread I roasted ages ago and have kept in the fridge in a jar, tightly lidded. This is mainly to let you know the garlic held up fine. It makes a great spread.
I'd roasted it in olive oil in a small pan at 400 f for about an hour if I remember correctly, anyway till soft enough to spread. I wasn't sure how long it would keep, but the answer seems to be : ages!
