81-year-old Patsy Grimaldi may be the last person making pizza today who trained under someone who trained at Lombardi's—the first pizzeria in American history. Dan sits down with Patsy and his wife Carol to discuss slice folding technique, the art and science of using a coal oven, what she taught him about pizza, and the scourge of pineapple pizza, along with several other trends Patsy deems "ridiculous."