Peel 6 large potatoes. Chop. Put in crockpot along with 2 chopped medium onions, 4 chicken bouillon cubes, 1 tablespoon parsley flakes, chopped celery, 1 tablespoon salt, 5 to 6 cups water, 1/2 cup butter, 1/4 teaspoon pepper, 1 (12 oz.) can evaporated milk, 1/2 cup flour. Mix well. Cook on low 8 to 10 hours.