We’re familiar with pho, Vietnam’s best-known culinary export. Some of us are even familiar with bun bo hue, a spicier version of beef noodle soup from central Vietnam. Now, I would like to introduce banh xeo, a crepe filled with sizzling pork and shrimp that everyone ought to get to know better. Pronounced “boon say-o,” banh xeo consists of a rice-flour crepe seasoned with turmeric and filled with bits of pork, shrimp and bean sprouts. It’s a popular South Vietnam street food that’s served with piles of lettuce leaves and fresh herbs.