A bánh bao is a fluffy steamed bun with a savoury filling, a great little snack when you’re on the go. I will always be indebted to the friend who brought these over for me after I had a baby. They were life-savers—I mean, imagine a whole meal in the palm of your hand. Jicama is a beautiful addition because it adds texture to the filling; it can be found in Asian grocers. If you can’t source quail eggs, substitute three hard-boiled hen’s eggs, quartered.