If you haven't tried celeriac, wait no longer. This pale green edible root sporting a curly headdress of green leaves is a celery family member, sharing celery's clean, bright flavor. This hardy root adds pizzazz to soups and salads and is packed with vitamin K, vitamin C, phosphorus and fiber. The long-storing root keeps up to 3 months, earning it a place in the well-stocked larder.