Fast-casual chain Shake Shack’s new Big Shack burger, an unmistakable riff on the Big Mac, is sending the internet into a frenzy. It follows the success of Chili’s Big Smasher, another Big Mac ...

Shake Shack Inc. owns, operates, and licenses Shake Shack restaurants (Shacks) in the United States and internationally. Its Shacks offer burgers, chicken, hot dogs, crinkle cut fries, shakes, frozen ...