We love these cookies!!! At Christmas we make them a bit differently. We make one batch yellow cake mix and one batch chocolate, then we put the on wax paper in layers, half chocolate and half yellow. Roll it into a log and refridgerate until they are very firm. 2 cake mixes usually make 2 or 3 "logs". Then we slice them, and bake them as usual. The girls love the half and half cookies!!