Passover begins on Monday and matzah will be on many tables all throughout the eight-day holiday. Segment producer Sarah Rogozen visits a mock-matzah factory in Westwood where preschoolers learn about the history and symbolism of the unleavened bread. LA based chocolatier Jonathan Grahm says his chocolate-covered matzah is so popular that he sells it year round. Art historian Ross King details the food on the table in Leonardo da Vinci's 15th Century painting, The Last Supper, and butter carvers Jim and Marie Victor discuss the art of food sculpture. Top Chef contestant Richard Blais talks to KCRW producer Darby Maloney about what it was like to be a "cheftestant" and how his reality TV career changed his career as a chef. Producer Gillian Ferguson finds out the history of sizzurp, an illegal cocktail popularized by hip hop culture; and Jonathan Gold digs the seafood at Little Fork in Hollywood. At the market Laura Avery interviews cookbook author Amelia Saltsman about her market-inspired Passover sides and pomologist David Karp tells the story of California rhubarb.