Phở is a traditional Vietnamese noodle soup consisting of broth, rice noodles, herbs, and meat, typically beef or chicken. It is known for its aromatic flavors, which come from spices like star anise, cloves, and cinnamon, simmered for hours to create a rich broth. Originating in northern Vietnam in the early 20th century, phở has become a popular dish worldwide. It is often served with fresh herbs such as basil and cilantro, along with lime wedges and chili peppers on the side, allowing diners to customize their experience.