We take a trip to Rome in search of authentic Fettuccine Alfredo. Back in the kitchen, Christopher Kimball demonstrates the rich, yet simplified version of an often heavy and cream-laden dish. Milk Street Cook Bianca Borges shows Chris how to make Chocolate Biscotti with Pistachios, Almonds and Dried Cherries and Milk Street Cook Josh Mamaclay prepares Lemon Garlic Fettuccine.