If he were real, Willy Wonka would endorse this hot chocolate

According to New York Magazine and many others, the best hot chocolate in New York is made by Chef Scott Campbell, at his restaurant, @SQC, on the Upper West Side. Made from Valrhona chocolate and nicknamed "Life in a Cup" on the menu, it's also available at Campbell's other Upper West Side restaurant, Avenue.
What: Hot Chocolate, $4/cup, @SQC
Where: 270 Columbus Avenue between West 72nd and West 73rd Streets.
Extra: The recipe for Scott Campbell's Hot Chocolate.