Make a hole in flour. Add boiling water. Begin to mix with chopsticks and finish with your hands to make a ball. Do not overwork the dough.
Cover with cling film and place in your fridge for 15 minutes.
Roll out dough finely and cut into squares.
Place a large teaspoon of stuffing in the middle.
Brush a bit of white egg on two edges.
Double to obtain a triangle.
Take the two opposed ends and close your dumpling by pasting them together using a bit of white egg.
Go on until nothing left.