Celeriac
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.