Slow-Cooker Clam Chowder

In a 3 1/2- or 4-quart slow cooker, combine celery, onions, potatoes, carrots, the water, clam juice, broth, thyme and pepper (see Tip).

Cover and cook on low-heat setting for 7 hours or on high-heat setting for 3 1/2 hours.

If using low-heat setting, turn to high-heat setting. In a medium bowl, combine evaporated milk and cornstarch. Stir milk mixture, clams and sherry (if desired) into cooker. Cover and cook for 30 to 60 minutes more or until bubbly around edge. Stir in vinegar just before serving. Sprinkle each serving with bacon and if desired, green onion.