What's your favorite holiday story?

Since it's the holidays I was wondering what everyone's favorite holiday themed fanfic is. For me it's got to be "Christmas Crackers" by T'Kuht.

I like just about any Spock/Chapel even if they seem out of character for me, but I think T'Kuht captures the characters perfectly, especially Chapel. Her Christine Chapel is the one I think should have been portrayed in Star Trek if Chapel was allowed more character development.

Please sound off with your recommendations in the comments!