Our newest guest and amazing friend, Rob Lynch, CEO of Shake Shack, admits he can’t go back — it’s double deckers only now. Once you’ve leveled up your ShackBurger, there’s no turning back.
Our newest guest and amazing friend, Rob Lynch, CEO of Shake Shack, admits he can’t go back — it’s double deckers only now. Once you’ve leveled up your ShackBurger, there’s no turning back.