Got the recipe from here
½ cup packed brown sugar
½ cup ketchup
½ cup soy sauce
¼ cup sherry
2 tsp fresh ginger, minced
4 cloves garlic, minced
¼ tsp freshly ground black pepper
chill the chicken overnight, or at least 8 hours. (I highly recommend overnight) Turn once or twice over night to ensure even marinating.
or just until center is no longer pink. Baste with the reserved sauce during the last few minutes of grilling.
Serve up nice and hot!
Serve with Potato Macaroni Salad