3. Add the leeks and stir-fry briefly, then remove to a plate to cool.
4. Add a little oil to a pot of boiling water, add the vermicelli and boil for about 5 minutes.
5. Drain the vermicelli and place in a bowl, add the sautéed vegetables, soy sauce, sugar, pepper, and sesame oil, and mix.
6. De-gas the fermented dough and divide into 8 equal portions.