Test cook Julia Collin Davison shows host Christopher Kimball how to make the ultimate Sausage Meatballs and Spaghetti. Then, equipment expert Adam Ried reviews insulated shopping totes in the Equipment Corner. Next, Chris answers cooking questions in Letters to the Editor. Finally, test cook Bridget Lancaster uncovers the secrets to making Tagliatelle with Prosciutto and Peas at home.