Make it a Double Shack. Shake Shack up 135%!

“#Gratitude. Team, Guests, Community, Suppliers, and Investors. In that order. Thank you all,” he wrote.

Shake Shack, which started in 2001 as a hot dog cart in New York’s Madison Square Park, has quickly become a Big Apple icon.

Expanding … but not too quickly. The company currently operates just 63 restaurants worldwide — but 16 of them are in the metropolitan New York City area.

Shake Shack has already planted outposts in several global markets, such as London, Moscow, Kuwait, Turkey and the United Arab Emirates.

And the company has said that it wants to expand relatively slowly. It is targeting 10 new locations in the U.S. a year as well as more international locations.

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