In a small saucepan, bring the broth to a boil.
Sprinkle the unflavored gelatin over the broth and stir until dissolved.
Pour the mixture into a shallow dish and refrigerate until set, about 2-3 hours.
Once set, cut the aspic into small cubes.
In a large mixing bowl, combine the all-purpose flour and warm water.
Mix until a dough forms, then knead on a floured surface for about 5-7 minutes until smooth and elastic.
Cover the dough with a damp cloth and let it rest for at least 30 minutes.
In a large bowl, combine the ground pork, soy sauce, sugar, rice wine, sesame oil, ground white pepper, salt, finely chopped green onions, and grated ginger.
Mix well until all ingredients are thoroughly combined.
Gently fold in the chilled aspic cubes into the pork mixture.
Divide the rested dough into small, equal-sized pieces (about 1 inch in diameter).
Roll each piece into a thin circle about 3 inches in diameter.
Place about 1 tablespoon of the filling in the center of each dough circle.
Carefully pleat the edges of the dough circle to form a small purse, pinching the top to seal the dumpling.
Line a steamer basket with parchment paper or cabbage leaves to prevent sticking.
Place the dumplings in the steamer basket, making sure they are not touching each other.
Steam the dumplings over boiling water for about 8-10 minutes, or until the dough is translucent and the filling is cooked through.
Enjoy your meal!