First, Cut all the vegetables (150 g green cabbage, 30 g green onion, 60 g fresh shiitake mushroom(s), 30 g carrot(s), 30 g bell pepper(s), 50 g boiled bamboo shoots, 10 g ginger root) according to the ingredients list and cut 150 g pork shoulder or belly into small pieces.
In a bowl, mix the pork with 1 pinch salt and pepper and 1 tsp sesame oil. Mix.
Heat up a pan (that has a lid) on medium and fry the cabbage until softened slightly.
Once softened, add 2 tbsp sake and 300 ml chicken stock. Steam with the lid on for 3 minutes and then remove from the heat.
In a separate, larger pan, fry the pork on a medium-low heat until the meat is sealed.
Add the ginger and green onion, and fry until fragrant.
Add the rest of the vegetables to the pan with the pork and stir fry together for a few minutes.
Season the filling with ½ tbsp soy sauce, ½ tbsp oyster sauce and ½ tbsp sugar and mix well.
Pour the contents of the other pan (cabbage and chicken stock) into the pan with the pork and vegetables.
Submerge 30 g rice vermicelli noodles into the chicken stock and simmer until softened.
Make a slurry by mixing 1 tbsp cold water and 1 tsp cornstarch in a small bowl. Pour it into the pan and simmer until thick and glossy.
Remove from the heat and transfer to a container to cool.
When it's cool enough to touch, cut the glass noodles with scissors so that they are 5-10cm in length. (This is only necessary if your glass noodles are long.) Chill in the refrigerator until you're ready to assemble.