I am going to my family-in-law's house for a new years eve dinner/small party and I am tasked with dessert. I always do this over the top (my wifes words) so I was looking to tackle a buche de noel. I am reconsidering and want to know if anyone can think of something I can make that will transport well (45 min drive to the dinner) and that I can either throw in the oven there before serving, or is cold.

Last time I made dinner for this group we did chocolate peppermint lava cakes and cheesecake is over done, IMHO. They are kind of highfalutin types.