Salmon and Grapefruit in Cucumber Milk

When Pierre Schutz, who has been the innovative chef at Vong for several years, mentioned this dish to me, I was a little taken aback. Boiled potatoes topped with smoked salmon, surrounded by a creamy cucumber broth spiked with grapefruit is, after all, a strange-sounding combination. It turns out, however, to be one in which the flavors marry perfectly.

Consider this dish, which should be served at room temperature as soon as it is assembled, a large appetizer or a