Combine ingredients for the dumpling skirt slurry into a small bowl. Whisk and set aside.
Add oil to a hot pan under medium heat. Place frozen dumplings in a circular shape with the corners of the dumplings pointed toward the center of the pan. Cook dumplings until the bottoms are golden brown (about 5 minutes).
Give the slurry a whisk to ensure it is well mixed, then slowly drizzle into the pan. Be sure the slurry is evenly distributed and a thin layer has formed beneath the dumplings.
Cover the pan with a lid and reduce heat to low. Cook covered for an additional 5 minutes so the dumplings can steam. Then lift the lid and continue to cook until all the water has evaporated and the skirt is crispy.
Cover the pan with a large plate then flip so that the skirt is facing up on the plate.
Garnish with sliced green onions and drizzle with chili crisp (*optional)