Combine all ingredienrts thru red pepper flakes,and stir till sugar dissolves. Transfer to a resealable bag and add the chicken.
Seal bag and marinate chicken in trfrigerator,turning once. for 1 hour.Can be marinated up to 4 hours.
Heat broiler to high. Arrange chicken on pan skin side down and broil until brown and crispy,8-10 mins. Flip chicken and broil until almost cooked thru,about 8 mins longer.
Sprinkle with sesame seeds and cook till seeds turn golden brown and chicken is done,1-2 mins. longer