Overview: Ever since humankind first put food to fire, the world’s grill cultures have wrapped and rolled flavorful ingredients. Steven explores two South American grilled classics—a stuffed chicken breast from Uruguay called pamplona, and a colorful stuffed beef roll Argentineans know as matambre. Plus, a Project Fire Mystery Box recipe that may involve a crustacean. Pamplona of Chicken, Matambre (Flank Steak), Mystery Box.