Mix cornstarch and orange juice; stir into sauce in cooker. Cover and cook on high heat setting about 10 minutes or until sauce is thickened. Spoon sauce over pears. Note: This recipe was tested in slow cookers with heating elements in the side and bottom of the cooker, not in cookers that stand only on a heated base. For slow cookers with just a heated base, follow the manufacturer’s directions for layering ingredients and choosing a temperature.