In 4- to 5-quart slow cooker, place all ingredients except cornstarch and water.
Cover; cook on Low heat setting 8 to 10 hours.
In small bowl, mix cornstarch and water; gradually stir into stew until blended.
Increase heat setting to High; cover and cook about 20 minutes longer, stirring occasionally, until thickened.
Notes & Wine Advice
Parsnips, root vegetables that look like creamy white carrots, have a slightly sweet flavor. If you don’t have any on hand, you can use carrots instead.