Heat your oven to 425 degrees Fahrenheit or 218 degrees Celsius. Place the chicken on an oiled tray. Cook in the heated oven for approximately an hour. Depending on the size of the chicken, it could take up to 1 hour and 30 minutes. 2 or 3 times during cooking, baste the chicken with the oil and juices on the tray. During the last 10 minutes of cooking, you can increase the oven temperature to 475 degrees to have a golden brown chicken. If you live in an apartment, the smoke alarm may go off so you can skip the high heat. The skin will still be crispy.