Wash 4 dried scallops and rehydrate them in 200 ml of water and let sit overnight. Or soak in hot water for at least 1 hour
Pull the dried scallops apart to get thin pieces. Leave the pulled-apart scallops in the soaking and set aside
Rehydrate a small bunch of mung bean vermicelli in a bowl of water for 30 minutes. Cut into 2 cm pieces
Cut off the skin and remove seeds and inside membranes of winter melon. Clean and put onto a steaming plate, cover with tin foil and steam at high heat or 100˚C or 210˚F for an hour
In a small pan or pot, add 2 tbsp oil and fry garlic at medium heat until they turn a golden yellow colour. Remove from heat for later use
In a mixing bowl, combine pork, minced garlic (and its oil), mung bean vermicelli, ½ tsp salt, ¼ tsp white pepper powder 1 tbsp Shaoxing wine, 1 tbsp light soy sauce and 1 tbsp sweet potato starch and mix well
After steaming the winter melon for an hour, pour out water You can save this water for broth and fill ½ of the hole in the winter melon with the meat mixture and steam at medium-high heat (93˚C or 200˚F) for 30 minutes
Pour the scallops and water into a sauce pan. Turn heat to medium. Add 2 tbsp of abalone sauce, ½ tbsp dark soy sauce and ½ tsp sugar. Turn heat to low, cover with a lid and let cook for 30 minutes. After 30 minutes, turn off heat and let sit until the winter melon is finished cooking
After 30 minutes of steaming the winter melon, add the remainder of the meat mixture into the hole and also on top of the winter melon. Continue steaming at medium high heat (93˚C or 200˚F) for 45 minutes at or until meat is cooked
When the meat on the winter melon is cooked, combine 2 tsp of cornstarch with 60ml water to make slurry and stir well
Turn on heat for the scallop sauce, add slurry and mix well until the sauce thickens. Taste the sauce to determine if more salt is necessary. If so, add ¼ tsp at a time. Turn off heat
Remove the winter melon from the steamer and pour out excess water You can save this water for broth
Spoon the sauce over the meat on top of the winter melon and then sprinkle with green onions to garnish