http://www.ravelry.com/patterns/library/alices-mitts
OK, I felt guilty and looked up the pattern. :-) There are several based on Alice in the Twilight saga but I think this is the one, yes?
I was thinking of Bella's mittens I think, those have a big fat cable.
Alice's - she wants you to divide by 3 because the ribbing is 3x3.
I'm not sure which size or which yarn you're using.