Cookies, Cookies!

So I have lots and lots of cookies to make this month....



Really, what else is new?

I need to expand my cookie file. I've never made Rum Balls before and I'm thinking I should try them. And maybe I should take some time to make some really fancy cookies with piping and all that...maybe some nut brittles...



So, I'd like to take a poll....

What is your favorite Christmas cookie without which Christmas just wouldn't be the same?