make tare sauce: add all ingredients to a saucepan, bring to boil, cover and simmer for 30 minutes, cool to room temperature for the dumplings: chop chicken to a paste in a processor, or by hand.
transfer to a bowl and add salt& pepper, squeezing the mixture with your hands.
add scallions, ginger, egg white, sesame oil, and mix grease a broiler pan, and your hands.
form into 12 balls, making a depression with your thumbs.
add oil to a skillet and cook the dumplings 1-2 minutes to brown the outsides.
remove and drain on a paper towel heat broiler to high.
thread 2 dumplings on each skewer, broil about 2-4 minutes, turning once.
put a few spoonfuls of tare sauce into a small dish dip the dumplings into the tare sauce and return to broiler for 2 minutes, until dry.