Putting their energies into superb, refined food rather than fussy decor, L'O de Source offers a very short menu of gourmet offerings in a paired-back but modern interior within a 1775 mansion close to the tourist office.
There are two choices of starter and two of main course in which you'll get hints at ingredients rather than any real descriptions. Or just let go with the five-course menu and enjoy a complete surprise: generally a really good one.