Two years ago I attempted my first Yule Log for Christmas Dinner. I think the first rule of baking is follow the directions. Well on my first attempt I bought Betty Crocker cake mix and thought I could roll it into a log. The cake did not roll, though crumbled and looked more like a slab of bark than a log.
This year I found a recipe on Cooks.com and followed itexactly. Look how nice they turned out! My only advice for this recipe is make sure you use REAL vanilla extract. I also used Ghirardelli's semi-sweet chocolate bars. Also when you are making the egg custard, do it in a double-boiler and don't rush...you do not want the egg to cook too quickly. That is chocolate mousse in the bowl next to it....I had extra cream, chocolate and eggs and through a dab of mousse on the plate would make it extra yummy.