It's hard to choose, but the best thing I ate on this trip was the duck. The region around Sarlat is renowned for its traditional dishes like duck confit and duck sausages, and one evening we ate dinner at a local family-run restaurant, whose duck dishes are extremely tasty, and for good reason. It feels like sacrilege to think of something I didn't enjoy eating on this trip. Actually, it would have to be the plastic-packaged pastry on the Eurostar, but thankfully the food improved from thereon out!