1. A Le Truffle Double Double at Le Bun
It's impossible to decide which is the best burger at Le Bun, a French-American pop-up currently running just off Leicester Square: the highly sexual Truffle Double Double, a double cheeseburger that comes dripping with truffled veal jam, truffle mayo, and American cheese, or the ACTUAL CHEESEBURGER THEY GARNISH THEIR BLOODY MARY WITH. So you must do the only rational thing: Get both.
Location: Leicester Square