An curved arrow pointing right. Despite its strong fanbase, not a lot of people know about a secret menu at Shake Shack. So we took a shot at ordering a secret menu item the burger chain once ...

An curved arrow pointing right. Despite its strong fanbase, not a lot of people know about a secret menu at Shake Shack. So we took a shot at ordering a secret menu item the burger chain once ...

At Shake Shack, however, one popular off-menu offering — the peanut butter and bacon ShackBurger — isn't really a secret at all. In fact, the restaurant went as far as to point out this ...