Wash and dry the chicken and place in a medium-size roasting pan. Mix the spice mixture and, using your hands, rub all over the chicken. Place breast-side up into the refrigerator and leave uncovered overnight or for at least 8 hours.
Remove from oven at least 1 hour before roasting. Preheat oven to 425°. Pour 2–3 tablespoons of olive oil over the chicken and place into oven. After 20 minutes turn the heat down to 375° and continue to roast for another 40–50 minutes, until the meat pulls easily from the bone and the temperature reads 160°–165°. If the pan is completely dry, pour another 2–3 tablespoons of olive oil over the chicken.
Remove the chicken and allow to sit for 10–15 minutes before serving.