Xíu mại is a soft and tender Vietnamese pork meatball, stewed in tomato sauce. These meatballs can be squashed inside a fresh crispy baguette to create a delectable street-side snack. Bánh Mì Sáu Minh (170 Vo Van Tan, District 3) is considered Saigon's best in class for bánh mì xíu mại. This family-run business, which operates from 8 a.m. to 10 p.m., does a roaring trade in several types of bánh mì, including a sardine and a cheese version. But the standout sandwich is the bánh mì xíu mại, served with cucumber, herbs and a dash of fresh black pepper, and best eaten while still warm.