An curved arrow pointing right. We asked Shake Shack culinary director Mark Rosati the key to making a perfect burger. Produced by Will Wei and Megan Willett Follow TI: On Facebook More from Tech ...

An curved arrow pointing right. Shake Shack is a favorite among New Yorkers, as famous for its burgers as it is for its insanely long lines. However, one of its lesser-known menu items, the ...