Celeriac

A different part of the celery plant

Celeriac is the same species as celery (Apium graveolens) but bred for the swollen root rather than the leaf stalks. The plants look quite similar above ground — celery-like leaves and stems — but the underground root develops into a dense, knobby bulb.

The flavor is concentrated celery: nutty, slightly sweet, with the same aromatic celery essence but firmer and more complex.

Ugly outside, elegant inside

A whole celeriac is almost comically ugly — knobby, rooty, dirt-encrusted, with a tangle of small fibrous roots at the base. Many shoppers pass it over for prettier-looking vegetables.

Inside, however, the flesh is clean off-white, dense, and silky — capable of being mashed smoother than potato, sliced thinner than potato, or grated into delicate raw salads. Trimming requires a sharp knife and willingness to waste some bulk: the rough skin and root tangle are removed in slabs.

Céleri rémoulade

The defining French preparation is céleri rémoulade — finely shredded raw celeriac dressed with mustard mayonnaise, lemon, and capers. The dish is a Parisian bistro staple, often served as a starter or alongside cold meats.

Done well, it’s a perfect winter dish: bright, refreshing, complex, and satisfying. Done poorly (with too much mayo or under-seasoned), it can be bland and forgettable.

Low-carb mash

In low-carb and ketogenic cooking, celeriac has become a popular potato substitute — mashed with butter and cream, roasted in chunks, or formed into “fries.” The flavor is more complex than potato, but the texture is similar enough to satisfy people missing starchy comfort foods.

Celeriac’s lower carbohydrate content (about 1/3 of potato) makes it appealing to low-carb dieters without the bland substitute character of cauliflower mash.

A cold-storage champion

Celeriac is an excellent cold-storage crop — heads keep for months in cool dry conditions. This made it a winter staple in pre-refrigeration European cuisine, especially in Germany, France, the Netherlands, and Eastern Europe.

In modern Eastern European cooking, celeriac remains common in winter soups, slaws, and stews — a tradition that hasn’t transferred as strongly to American kitchens despite the vegetable’s many virtues.