Can adding food flavors and smells to live theater make it feel more real? We go behind the scenes of a new production of the musical "Sweeney Todd" to find out.
We feast on Philly's most iconic foods, then bring samples to a scientist to find out what makes greasy treats like cheesesteak and scrapple so irresistible.
Her journey back to the food she grew up with includes false starts, U-turns, and a mail truck full of sandwiches.
