Dipping Sauce:

1. In a small mixing bowl, whisk together all ingredients until fully combined. Set aside.

‍Potstickers:

1. Add the cabbage to a large mixing bowl and lightly season with salt. Using your hands, massage the salt into the cabbage until it begins to release some of its moisture. To remove the rest of liquid from the cabbage, use either your bare hands, or wrap the cabbage in a towel, and squeeze the cabbage until as much liquid as possible is expelled, then discard the liquid.
2. Add the cabbage back to the large mixing bowl and then add the ground pork and mix by hand to incorporate. 
3. Add the green onion, garlic, ginger, soy sauce, and optionally, salt to taste. Mix and knead by hand until fully incorporated. 
4. To fold the dumplings, first lay out a dumpling wrapper on your work surface, making sure to keep the remaining wrappers covered in plastic wrap or with a lightly damp paper towel to avoid drying out. Place about 1-2 tsp (5-10g) of filling into the center of the wrapper. Be sure not to overfill the wrappers. Use your finger to wet the entire border of the wrapper with water and then fold up the wrapper in half like a taco. Pinch the top of the taco in the center, leaving two open split ends. From each open split end, crimp and fold the front half of the taco over itself 3 times, sealing it against the back half of the taco. Please refer to the video on how to fold if you need visual aid.
5. Repeat with the rest of the filling and wrappers. 
6. Heat a 10-inch (25cm) non-stick skillet set over medium heat. 
7. Add the canola oil and heat. Add 8-12 potstickers to the skillet in a single layer, crimped side up, ensuring the potstickers all have full contact with the skillet and are not touching each other. Sear the potstickers for 2-4 minutes or until the bottom of the potstickers are a deep golden brown in color. 
8. Add the water to the skillet and immediately cover with a lid and steam for 2-4 minutes or until the water has completely evaporated. 
9. Turn off the heat and lightly drizzle the tops of the potstickers with toasted sesame oil. 
10. Transfer the potstickers to a plate and top with chili oil, if desired, and thinly sliced green onion.  
11. Serve with dipping sauce on the side and enjoy.