Put all the ingredients for the filling in a large bowl and mix them together.
Get a sheet of fresh tofu skin and place it on a flat surface. If you're using dried tofu skin, make sure that you rehydrate it. Wipe any excess liquid or salt from its surface.
Put around 3 tablespoons of the filling near the edge of the sheet closest to you. Fold the sides of the tofu skin, then roll it over.
Roll until you form a cylinder that's about 4 inches long and 1.5 inches wide. Wet the edge using water or egg white, then stick it to the surface of the roll, securing it.
This recipe will let you make 10 to 15 rolls, depending on your desired roll size.
Shallow fry your tofu skin rolls until golden brown. After frying, place your rolls in a strainer or paper towel to get rid of excess oil. Set aside.
In a saucepan, sauté ginger and garlic in cooking oil for a minute.
Add the chicken stock, Chinese cooking wine, and white pepper.
In a cup, mix the corn flour with a few tablespoons of the chicken stock. Mix until solution is smooth, then add it to the sauce.
Bring your sauce to a boil and wait for it to thicken.
Arrange your tofu skin rolls in a shallow bowl. Pour some of the sauce over, cover, and steam in medium heat for 6 to 8 minutes.