Add Yahoo as a preferred source to see more of our stories on Google. Shake Shack meal with burger and drink - Scott Olson/Getty Images You may not have noticed as you're digging into crinkle-cut ...

Join us as we dive into a special Shake Shack experience, featuring the elusive 'quad burger' that's not on the regular menu. Watch our food review and taste test as we uncover this multi-layered ...