I used this pkt for the base, 500 ml.
I fried 4 garlic , 6 pcs of ginger and a stalk of scallion with 1 tbsp oil. Then add 500 ml stock.
Add crab at boiling point, added evaporated milk close with lid and simmer with high heat for 12 mins to 15 mins depending on the size of crab. Pour in bee hoon, boil for 3 to 4 mins. When ready add cut scallion and parsley. Lastly fish sauce and 3 tbsp hua tiow chew. Stir well serve.