How to Make It
Heat 1 tablespoon of the vegetable oil in a skillet. Add the garlic chives and sauté over moderately high heat, stirring often, until wilted. Transfer to a bowl to cool.
In a food processor, combine the scallion and ginger and pulse until the scallion is finely chopped. Add the scallops, plum wine, soy sauce, cornstarch, sesame oil, salt and pepper. Pulse until the scallops are finely chopped. Add the garlic chives and pulse just until evenly incorporated but not smooth.
If using square wonton skins, spread them out on a work surface and cut them with a 3 1/2-inch-round biscuit cutter. Keep all but 12 skins covered with a towel while you proceed. Spoon a heaping teaspoon of the filling into the center of each wonton skin. Draw the edges up and pleat evenly. Pinch the pleated edge to form a little bun. Repeat with the remaining wonton skins and filling.
Pour the remaining 1 tablespoon vegetable oil onto a small plate and dip the bottom of each dumpling in the oil. Arrange the dumplings without touching in a bamboo steamer basket. Cover and steam over boiling water for 10 minutes. Serve warm with the dipping sauces.