Ingredients: Wheat flour, rice starch, baking powder

1. Add 250ml water into 400gr baking powder and knead and form the dough into a soft ball (leaving a bit dough rolled) next use plastic wrap to cover the dough about 10 minutes; knead the dough one more time, then gently stretch the dough lengthwise, later use plastic wrap to cover the dough about 3 hours (keep the dough covered as long as possible so that it tastes more delicious)

2.  Place the dough for rolling, flour a tray surface and roll dough to about 0.5 cm thick. Cut the dough into strips roughly 10 cm long and 3cm wide; use the wet toothpick to seal a long line in the center of dough, then pair and place two pieces on top of each other, press down vertically with the sharp edge of the knife.