1Spray 2 1/2- to 3 1/2-quart slow cooker with cooking spray. In slow cooker, mix pepper jelly, brown sugar, barbecue sauce and pineapple. Stir in sausages.
2Cover; cook on Low heat setting 3 hours.
3In small bowl, mix cornstarch and water until smooth. Gradually add cornstarch mixture to sausage mixture, stirring constantly. Increase heat setting to High. Cook uncovered 1 hour longer or until glaze is thickened. Serve warm on skewers, if desired.