Transports of delight come no more captivating than Grand Train Tour of Switzerland, smoother than König of Chocolate Lindt, punctual as Karlsson cuckoo clocks, precise like Tissot timepieces.

The chef: Gavin Kaysen, executive chef of Spoon and Stable, Demi, Bellecour Bakery, and Mara at the Four Seasons; and Jessi ...