Mix together the stock, water, cornstarch and soy sauce.
Stir well and set aside.
Bring a pot of water to a boil, and then add the noodles and cook until al dente, 3 mins.
Drain under cold running water.
Add the sesame oil to prevent the noodles from sticking together.
Heat a wok over high heat and add the oil.
Add the ginger, mushrooms and garlic and toss together for a few seconds.
Add the shrimp and cook, stirring, for less than 1 minute.
Add the chye sim leaves and toss together for 1 min.
As shrimp starts to turn pink, add the Shaoxing wine.
Pour in the sauce and bring to a boil; this will take 1 –2 minutes.
Quickly add the cooked noodlesand season with the sesame oil and dark soy sauce.
Stir together well for 1 min, making sure all the noodles are coated in the sauce.
Season with pepper
Transfer to serving bowl and serve immediately, garnishing with red chilies on top