This is based on this recipe:
http://smokywok.com/hong-kong-cheong-fun-recipe-steamed/
Dough
250g rice flour
76g tapioca flour
38g corn flour/ corn starch
50g oil
900 ml water
Filling
1/2 cup dried shrimp, soaked and rinsed
6 stalks green onions/ scallions, sliced
1 table spoon toasted sesame...