Shake Shack is going beyond the beef.
The restaurant chain plans to launch its first ever chicken sandwich, the Chick'n Shack, nationwide on Thursday at participating locations.
Investors and customers have closely watched the sandwich since reports surfaced last spring that Shake Shack filed a trademark application for "Chicken Shack." Shake Shack began testing its first chicken sandwich at its Brooklyn locations during the summer.
In Brooklyn, the item has grown to a top-five seller, Shake Shack CEO Randy Garutti said at the ICR Conference on Tuesday.