Sizzling coconut pancake with crab and barbecue pork (bánh xèo)

Bánh xèo is a Saigon-style party pancake. It’s a festive dish, with lots of different fillings. The pancake is large and shared. You break off a piece of the pancake with its filling, wrap it in some lettuce with some fragrant herbs and dip it in nước chấm. It's so named for the sizzling sound it makes when the pancake batter hits the wok - "sssow".