CROCKPOT POTATO SOUP

6 potatoes, peeled and sliced
1 carrot, sliced
1 stalk celery, sliced
4 chicken bouillon cubes
1 tbsp. parsley flakes
5 c. water
1 tbsp. salt
Pepper
1/3 c. margarine
1 (13 oz.) can evaporated milk

Put all ingredients in crockpot, except milk. Cook on low 10-12 hours. Stir in evaporated milk during last hour. I sometimes add ham, cut fine and cook it all day too.