Wassail?

Last night I dreamed I was watching a baking competition show where they made "wassail." I know this is a drink in real life, but in my dream "wassail" was a big nativity scene, like 3-4 feet across, made up of various pastries. The tradition was to eat it around this time of January, and the youngest woman of the family would cut into it first while singing a certain song/hymn in 3-part harmony (presumably with 2 other people).