Mix all the ingredients excluding the chicken and sesame seeds
Place the chicken in a large freezer bag and add the marinade
Seal the bag properly and rub the marinade all over the chicken
Place in the fridge overnight to marinate (turn the chicken over every time you open the fridge)
Remove the chicken from the fridge about an hour to come to room temperature before roasting
Preheat the oven to 200 degrees C
Place the chicken on a roasting tray, cover with foil and roast for 45 minutes
Take the chicken from the oven and remove the foil
Baste with pan juices and sprinkle with the sesame seeds
Roast for another 20 minutes until the chicken is cooked through and skin crispy
Adapted from Nigella Lawson