In a large resealable plastic bag, combine the olive oil, white wine vinegar, garlic, rosemary, salt and pepper.
Split the chicken wings by cutting between the drumettes and wings.
Place the chicken wings and drumettes into the bag, seal the bag and massage until the chicken is coated with the marinade. Chill at least 1 hour or overnight.
Preheat the grill to medium heat. Lightly coat the grill with oil.
Place the chicken on the grill and discard the marinade. Cook until the chicken is golden brown, 18 to 20 minutes. Serve. Garnish with parsley, if desired.
Notes
*Serving size is dependent on the size of the wings you used. U10 to U12 (10 to 12 wings per pound), each serving will be approximately 4 pieces. Weight Watchers Points: 9 (Freestyle Smartpoints), 9 (Points+)