He moved to New York in 2011, where he is the owner and chef of a Neapolitan cuisine restaurant.[3][4]
Cozzolino has been the chef for New York City Mayor Bill De Blasio since 2018,[5] and a private chef for U2, Madonna, Muse, Coldplay, Eros Ramazzotti, and Laura Pausini.[6]
He created a diet with pizza, which he experimented on himself. In 2012 he began a diet where he ate a margherita pizza cooked according to the method of Neapolitan cuisine every day for lunch, losing 96 pounds in nine months.[7][8] The concept of the diet is based on the long fermentation period of the yeast (more than 36 hours), which removes almost all the sugars from the dough.[9][10]
He also worked as advisor for a project managed by BeeHex, a startup founded by NASA, to produce pizza with 3D printers. The goal of this technology is to duplicate the original recipe of Neapolitan pizza exactly.[11][12]