Well, this could be outdated, but I think the gum you are referring to is Adams gum. It came in sour apple and sour cherry, as well as some other flavors (I think). Anyway, for a limited time, you can order it at the Vermont Country Store. I just got my new catalog today, and they are selling it until the supplies run out. The website for the online catalog is http://www.vermontcountrystore.com.