makes about 8 buns, depending on size
Dough:
1 cup all–purpose flour
1 teaspoon instant yeast
1 teaspoon baking powder
4 tablespoons sugar
Pinch or two of salt
1 tablespoon sesame oil, plus extra for rolling out dough
1/2 cup lukewarm stock or water
Filling:
1/2 small cabbage
1 spring onion or green onion, diced fine
2 tablespoons fresh peeled ginger, minced
1/2 teaspoon salt
1 teaspoon sugar
1 teaspoon oyster sauce (see note)
1 teaspoon soy sauce
1 teaspoon sesame oil