It’s a New York institution in a city awash with burgers and last week Shake Shack rode into London for its first UK opening.
The buzzy Manhattan meat-in-a-bun joint started life as a kiosk in Madison Square Park in 2004, but the kind of kiosk run by the folks behind some of New York’s finer eating establishments like Union Square Café and Gramercy Tavern.
So think less run-of-the-mill hot dog stand, more 100% natural Angus beef, French fries made from Yukon potatoes and frozen custard (oh yes) sourced from daily farms that don't use without any artificial growth hormones. Cow power!
But nevermind all that - or the fact the London venture slap bang in the middle of Covent Garden market only uses burgers that are 100% Scottish Aberdeen Angus beef cooked to order - how does the blighter fit in your gob?
Well, a Shake Shack burger is neat, manageable, simple pleasure rather than an all-out, all-over-your-face meat attack (meaning no meat dribble with this baby). You can however expect a good quality burger experience, served up with a smile, crinkle cut fries and the ability to double up on your burger if you're feeling especially ravenous.
Which you might be, given the hefty queues that have formed since day one. Our advice? Get in line.