I added a post on making Cranberry Liqueur to my other blog, La Vegan Loca.
Energetically, cranberries are associated with protection and security. They are also known to ease the process of releasing that which no longer serves you, which makes sense given the fact that they prevent nasty bacteria from sticking to the walls of the urinary tract. Most often, folk magic belief and biological truth work quite well together. Imagine that.