Phở is a traditional Vietnamese noodle soup, while phở bò Hà Nội (Hanoi beef noodles) is considered a unique variation on this dish. It’s made from boiled beef, rice noodles, green onions, vegetables, and a broth which is made from stewed bones. Each phở shop closely guards their secret broth recipe, while Hanoians have endless debates over who makes the best. It is often served with lime and chili. Quẩy (fried bread stick) are usually available upon request.