In large saucepan, combine the potatoes, celery, onion, water, chicken bouillon cubes, and the salt. Cover and cook until the potatoes, onions, and celery are tender, or about 20 minutes. Do not overcook potatoes. They should be just tender, not mushy. Next, add 1 cup milk and heat through. In medium bowl, mix the sour cream, flour, chives and the remaining 1 cup milk. Gradually stir the sour cream mixture into the soup. Cook over low heat, stirring constantly, until thickened. |