In-Advance Note
To freeze the pot stickers, spread the uncooked dumplings in a single layer on a baking sheet that’s lightly slicked with oil, taking care that the pot stickers don’t touch each other. Place the sheet in the freezer until the pot stickers are almost frozen, at least 30 minutes. Then gently place the dumplings in a large resealable plastic bag and toss in the freezer for up to 3 months. When you’re ready to chow down on the pot stickers, take out as few or as many as you need. But don’t defrost the dumplings. Cook them frozen exactly like you would fresh dumplings—just add 3 minutes to the cooking time after you’ve added the water to the skillet.