Dough Preparation: To a large bowl, measure in the flour and the salt. Pour in the boiled water and stir the flour until the flour resembles loose crumbles. Pour in the cold water. Stir again until a shaggy dough begins to form. Knead the dough for a couple of minutes, tll everything is mixed well. Turn out the dough onto a clean work surface. The dough should be soft and elastic. Continue to knead your dough for another 3-5 minutes. Place the dough into a bowel, cover with a damp towel. Let rest for 20 minutes while you prepare the filling and the dipping sauce.