Celeriac is also known as 'celery root,' 'turnip-rooted celery' or 'knob celery'. It is a kind of celery, grown for its large and bulbous root rather than for its stem and leaves. The root vegetable is usually harvested when it's about the size of a large potato.
Celeriac makes a great creamy soup and is a nice garnish for Bloody Marys.
