Prepare the filling. If you’re using green cabbage, sauté the vegetables quickly. Heat 1 tablespoon oil in a skillet over medium flame and add cabbage, scallions, ginger and garlic. Cook, stirring frequently, for about 2 minutes, then transfer to a bowl to cool. Season lightly with salt and pepper. If you’re using Napa cabbage, you don’t have to sauté it. Just combine cabbage, scallions, ginger and garlic in a bowl, season it and set aside.
Put ground pork into a large bowl. Sprinkle the potato starch over it, and add water and sherry. Using a fork or a wooden spoon, thoroughly mix ingredients together, stirring for several minutes. As the liquid and potato starch are incorporated, the mixture should become paste-like, everything holding together.
Add the vegetables and stir everything together. At this point, you can cover the bowl and store it in the fridge for up to a day, when you’re ready to make the potstickers.
Assemble the potstickers. Set up a place to put your potstickers as you make them. We lined a hotel pan with a silicone baking sheet; you can also use waxed paper. Have a barely damp dish towel on hand to cover them and keep them from drying out. Also have a small bowl of water on hand.
We’re using store-bought wrappers. They usually come frozen; thaw them in the fridge overnight or on your counter for a few hours. If you want to make your own, there are recipes out there (and perhaps there will be one here someday—obviously, you need to make them ahead). When you’re ready to start, drape the stack of wrappers with a barely damp paper towel to keep the edges from drying out as you work.
Place a wrapper in the palm of one hand and, with a spoon, scoop a small bit of filling into the middle of the wrapper—a tablespoon or less. Dip a finger in the water and wet the edges of the wrapper.
Fold the wrapper in half and seal at the top and along the edges; you want to create a margin around the filling, closing it in. Then starting at one end, use your index finger to fold a pleat on the side away from you. Add another pleat next to it, then another, until you’ve reached the opposite end. Gently but firmly squeeze the pleats between your fingers to completely seal them; if needed, add a little more water with your finger. Place the potsticker on your silicone baking sheet, pressing it down gently to flatten the bottom.
And there you have it. You’ve made your first potsticker! Now continue making the rest of them, until you’ve used up all of your filling or your wrappers. Your skill will improve as you go (or it won’t, but no worries).
If you want to watch someone fold a potsticker, here’s a short video by Lilly at How2Heroes. Her method is slightly different from the one we described above, but similar enough to up your comfort level, we hope. You can either cook your potstickers now or freeze them for future cooking (or do both, as we did). We’ll explain the freezing process after we tell you how to cook fresh ones.
Cook your potstickers. We cook 14 to 16 of them for 2 servings. In a large nonstick, lidded sauté pan, heat enough oil to coat the bottom of the pan over medium-high flame. Add the potstickers bottom side down in a single layer, making sure they’re not touching each other. Let them cook 3 to 4 minutes, until the bottoms become golden brown. (Carefully peek at 1 or 2 of them to see how they’re doing.)
Reduce heat to medium, add 1/4 cup water to pan and cover immediately with the lid (watch out for splattering). Let the potstickers steam for 5 or 6 minutes.
Meanwhile, make dipping sauce. Our super simple one is equal parts soy sauce and vinegar, about 1/4 cup each, mixed together. That makes enough for 2 servings.
Transfer potstickers to 2 plates and serve with bowls of dipping sauce.
Freezing potstickers—and cooking frozen ones. To freeze potstickers, leave them on your hotel pan, cover them with waxed paper and place them in the freezer. Let them freeze for about 2 hours. Now you can transfer them to zippered plastic bags and store in the freezer without worry of them sticking together.
To cook frozen potstickers, no need to thaw them. Heat oil in a sauté pan as above. Add potstickers and cook for 4 to 5 minutes, until the bottoms are golden. Add the water, cover the pan and cook for 6 to 7 minutes. Done.