At the foot of Cathédrale St Front, this restaurant that pays homage to the fictional detective occupies a 16C room with a pale stone vaulted ceiling. Thanks to his little grey cells, Poirot would no doubt have detected the sincerity behind the deliciously revamped recipes based on produce from the exceptional terroir of the Dordogne: terrine of semi-cooked foie gras and rhubarb pickles with Monbazillac; pan-fried magret de canard; tarte Tatin with salted butter caramel ice cream. A warm welcome and dynamic service.