It's a toss-up between gingerbread cookies and shortbread cookies. But the shortbread cookies have to be really buttery and soft, not the cheap store-bought ones. Even cheap gingerbread is good, though.
For those who love shortbread cookies, may I suggest Piper's Purrfect Shortbread Cookies in Cooking with Cattitude II (pg. 174 in the With Pics version). Oh....my....goodness.... They are amazing!!! Literally melt in your mouth.