"It’s really all about the frozen hot chocolate here, to the extent that we can’t really vouch for many of the other offerings on the menu. We do know that Serendipity 3 (named for its three founders, not three outposts) came into its own as a coffee shop. Nowadays, it offers a dense menu of classics (both savory and sweet), though kids really do freak out for the hot chocolate. Reservations suggested."