Classic Pork and Shrimp Potstickers

1.In a large bowl, combine the ground pork, finely chopped shrimp, shredded napa cabbage, spring onions, minced garlic, grated ginger, 1 tablespoon soy sauce, 1 tablespoon sesame oil, cornstarch, white pepper, and sugar. Mix thoroughly until all ingredients are well combined and the mixture is slightly sticky.

2.Prepare a small bowl of water. Take one dumpling wrapper and place about 1 teaspoon of the filling in the center. Dip your finger in the water and moisten half of the wrapper's edge.

3.Fold the wrapper in half to create a crescent shape. Starting from one end, create small pleats along the moistened edge, pressing firmly to seal the dumpling. Repeat with the remaining filling and wrappers.

4.Heat 1 tablespoon of vegetable oil in a large non-stick skillet or wok over medium-high heat. Place a single layer of potstickers in the skillet, ensuring they do not touch. Cook for 2-3 minutes until the bottoms are golden brown.

5.Carefully pour 1/2 cup of water into the skillet. Immediately cover with a lid and reduce the heat to medium. Steam for 8-10 minutes, or until the water has evaporated and the filling is cooked through.

6.Remove the lid and increase the heat to medium-high. Cook for another 1-2 minutes, uncovered, to crisp up the bottoms again. Transfer the cooked potstickers to a serving platter and repeat with the remaining dumplings, adding more oil as needed.

7.While the potstickers are cooking, prepare the dipping sauce: In a small bowl, whisk together 1/4 cup soy sauce, rice vinegar, grated ginger, 1 teaspoon sesame oil, sugar, and red pepper flakes (if using).

8.Serve the hot potstickers immediately with the dipping sauce.