Just like baked chicken breast, I find that the secret to crispy skin and juicy meat is cooking at a high temperature for a relatively short time. This method ensures wonderfully crispy skin and juicy, succulent meat. When cooked at 450°F, the total cooking time for half a breast is 45 - 60 minutes. Because of its size, you will need to loosely cover it with foil after about 20 minutes in the oven, then finish roasting it. The foil will keep the top from scorching.