When I took this to a church get-together, I baked the dip at home for 20 minutes, put it in an insulated carrier with a hot pack, and then heated it up at church again. It got slightly overdone (the cheese on top was too crusty to be able to dip properly), but it was very good and all the reviews I got were positive. Even from my mother, who was incredibly nervous about my taking an experiment recipe as our contribution to a church potluck.