The turkey breast should be slow cooked for 7 to 8 hours in a Crock-Pot without ever lifting the lid. The turkey may be seasoned, as desired, by sprinkling lightly with onion powder and garlic powder. A few cloves of fresh garlic and chopped onion will lend a great flavor to the drippings which may then be thickened with a small amount of flour or cornstarch to make a gravy when the turkey is done.