A visit to Bui Vien is incomplete without trying Bún Chả, a dish made famous by former U.S. President Barack Obama's visit to Vietnam. Bún Chả 145 specializes in this Hanoi street food delight, featuring flavorful grilled pork patties served with a side of vermicelli noodles, fresh herbs, and a tangy dipping sauce. The smoky, savory taste of the pork combined with the fresh accompaniments creates a harmonious balance that captures the essence of Vietnamese cuisine.