Created by JShoreGirl on October 10, 2012
Step 1: Pour wine into a 5-quart slow cooker. Add apple, celery, carrot, garlic, mustard, and bay leaf.
Step 2: Season turkey with rosemary, thyme, sage, and pepper. Set in the slow cooker. Cook on Low for 8 hours, then move turkey to a plate and cover with foil.
Step 3: Pour 1 cup cooking juices into a saucepan and set over medium heat. In a separate bowl, whisk cornstarch and half-and-half together until smooth. When cooking juices come to a boil, add the cream mixture and cook for 2 minutes to thicken.
Step 4: Carve turkey breast and serve with sauce.