In a large mixing bowl, combine the ground pork, half of the onion, raw egg, salt, ground black pepper, and flour. Mix thoroughly until all the ingredients are well incorporated. Set aside.
Heat a cooking pot and pour-in oil.
When the oil is hot enough, sauté the garlic and remaining onions.
Add the beef cube and fish sauce and cook for a minute.
Pour-in water and let boil.
Scoop about a tablespoon of the meat mixture and form it into a ball shape figure then drop in the boiling one after the other. Cook for 10 minutes.
Add the patola (loofah) and cook for 2 to 3 minutes.
Put-in the misua and cook for 1 to 2 minutes while gently stirring.
Turn off heat and transfer to a serving bowl.
Serve hot. Share and enjoy!