A long lunch at the hotel's invitation while Oncle Joël was in town. This is arguably the best outlet in the entire Robuchon universe, backed by the deep pockets of the Grand Lisboa - with one of the best wine lists to match.
The tournedos rossini was simply amazing. As were quite a few other dishes.
A full description of the lunch is here:
http://www.diarygrowingboy.com/2017/12/week-of-drunkenness-cinq-chariots.html