Clean the mushrooms of your choice and finely cut them.
Thinly cut the pork, bamboo shoots and Chinese cabbage into matchstick-sized shreds.
Lightly beat the eggs with a pinch of salt.
Heat about 1 tablespoon (15 ml) oil in a preheated wok and scramble the eggs until set, but not too hard. Remove and keep to one side.
Heat the remaining oil. Stir-fry the shredded pork for about 1 minute or until the color changes. Add the fungus, bamboo shoots, Chinese cabbage and scallions. Stir-fry for about 2-3 minutes, then add the remaining salt, soy sauce and wine. Blend well and continue stirring for another 2 minutes. Add the scrambled eggs, stirring to break them into small bits. Add the sesame oil and blend well.
To serve: place about 2 tablespoons (30 ml) of hot Moo Shu in the center of a warm pancake, rolling it into a parcel with the bottom end turned up to prevent the contents from falling out. Eat with your fingers.
Thin pancakes
Sift the flour into a mixing bowl. Gently pour in the water, stirring as you pour, then stir in the oil. Knead the mixture into a soft but firm dough. If your dough is dry, add more water, one tablespoon at a time, to reach the right consistency. Cover with a damp towel and let stand for about 30 minutes.
Lightly dust the surface of a worktop with dry flour. Knead the dough for 6-8 minutes or until smooth, then divide into 3 equal portions. Roll out each portion into a long sausage and cut each sausage into 8-10 pieces. Keep the dough that you are not actively working with covered with a lightly damp dish cloth to keep it from drying out.
Roll each piece into a ball, then, using the palm of your hand, press each piece into a flat pancake. Dust the worktop with more dry flour. Flatten each pancake into a 6 to 8 inch (15 cm to 20 cm) circle with a rolling pin, rolling gently on both sides.
Place an un-greased frying pan over high heat. Once the pan is hot, lower the heat to low and place the pancakes, one at a time, in the pan. Remove when little light-brown spots appear on the underside. Cover with a damp cloth until ready to serve.
Hoisin sauce
Simply mix all of the ingredients together by hand using a sturdy spoon.
At first it does not appear like it will mix, but keep at it just a bit longer and your sauce will come together.
Notes
Be sure to use very hot-to-boiling water, as it helps relax the gluten, which will aid in rolling the pancakes super thin.
Adjust the heat of your pan as needed to cook the pancakes without burning them. I had to keep my burner on medium (rather than low) heat in order for my pancakes to cook properly (low was drying them out too much without cooking them fully), so watch your pancakes carefully.
If the pancakes are not to be used as soon as they are cooked, they can be warmed up, either in a steamer for 5-6 minutes, or in a microwave oven for 20-30 seconds, depending on the power.