Today, February 11, 2014, is National Peppermint Pattie Day. A York Peppermint Pattie is a dark chocolate enrobed peppermint confection produced by the Hershey Company. Many chocolate-covered peppermints had been made before the York Peppermint Pattie came on the market, but Kessler's version was firm and crisp, while the competition was soft. A former employee and York resident Phil Kollin remembered the final (sample) test the pattie went through before it left the factory. "It was a snap test. If the candy didn't break clean in the middle, it was a second.