01 -
In a small bowl, combine brown sugar, ketchup, soy sauce, sherry or chicken broth, ginger, and garlic. Mix well.
02 -
Divide marinade into two large shallow dishes. Add 12 chicken thighs to each dish and turn to coat evenly. Cover and refrigerate for 8 hours or overnight. Reserve 1-1/3 cups of the marinade, cover, and refrigerate it separately for basting.
03 -
Preheat an oiled grill rack over medium heat.
04 -
Drain chicken, discarding excess marinade from the dishes. Place chicken thighs on the grill and cook, covered, for 6-8 minutes on each side or until a thermometer inserted reads 170°F. Baste occasionally with reserved marinade during the last 5 minutes.
05 -
Remove the chicken from the grill and serve warm.