Place chicken wings on an ungreased broiler pan; sprinkle with salt and pepper. Place pan 4 to 5 inches under broiler.
Broil for 10 minutes on each side, or until chicken is golden. Transfer wings to a slow cooker.
Combine remaining ingredients except sesame seed; pour over wings. Cover and cook on low setting for 4 to 5 hours, or high setting for 2 to 2 1/2 hours.
Arrange on a serving platter; sprinkle with sesame seed.