"Homemade" Potato Soup

6 Potatoes; pared, cut in -bite size pieces
2 Leeks; washed, pared, cut in -bite size pieces
2 Onions; chopped
1 Carrot; pared, sliced
1 Stalk celery; sliced
4 Chicken bouillon cubes
1 tb Parsley flakes
4 c Water
1 1/2 ts Salt
Pepper
2 tb Butter
13 oz Evaporated milk (1 can)
Chopped chives

Put all ingredients except milk and chives in crockpot. Cook on low 10-12 hours or high 3-4. Stir in milk in last hour. Serve topped with chives.