Delicate Shanghai xiao long bao burst with hot, savory pork soup in every bite. A high protein, fresh dumpling perfect for family dim sum outings.
Combine all-purpose flour with hot water in a bowl, mixing gently by hand, then add cold water and knead until a smooth, soft dough forms. Cover and let rest for 45 minutes.
Prepare the filling by mixing ground pork, pork stock, green onion, and ginger in a large bowl. Stir in soy sauce, shaoxing wine, sesame oil, sugar, salt, and white pepper. Mix vigorously to activate protein for a sticky texture.
Divide rested dough into small balls (about 1 oz each), then roll into thin wrappers, aiming for even thickness all around.
Place 1 tbsp of pork filling in the center of each wrapper. Carefully pleat the edges, pinching tightly to seal, ensuring soup remains inside during steaming.
Line a bamboo steamer with parchment or cabbage leaves. Arrange xiao long bao with space between dumplings. Steam over high heat for 8 minutes, monitoring steam level to avoid drying out wrappers.