I'm going to be in Madrid for a week over New Year's and am appreciating all of the restaurant ideas on this board, but would like to be able to cook at home too and am wondering where the best food markets are at this time of year. Any suggestions would be welcome, both for food buying and browsing. We are staying near the Esperanza metro stop, but know that we'll need to spend a lot of time on the metro and wandering around exploring restaurants and museums. Any suggestions would be welcome. Thanks.