This week on Milk Street Radio, Yasmin Khan gives us a closer look at Iranian food and her personal journey with it. We’ll also offer our recipe for quick pork tapas and a tip for cooking pasta in its sauce. Dr. Aaron Carroll explores the truth about peanut allergies, Lior Lev Sercarz takes us inside the world of spices and, as always, Christopher Kimball and Sara Moulton take your calls.