1. In a 4- or 5-qt. slow cooker, combine sweet potatoes and onion. Sprinkle chicken with paprika, thyme, salt and cayenne; arrange over sweet potatoes. Top with preserves. Cover and cook on low for 6-8 hours or until chicken and potatoes are tender.
2. Remove chicken and vegetables to a serving platter; keep warm. Skim fat from cooking juices; transfer to a small saucepan. Bring liquid to a boil. Combine cornstarch and water until smooth. Gradually stir into the pan. Bring to a boil; cook and stir for 2 minutes or until thickened. Serve with chicken and vegetables. Yield: 4 servings.