What spices go with celeriac
Quick answer
Mustard seed, Nutmeg, White pepper — in roughly that order of how well established each combination is.
Each is explained below, with the cuisines it belongs to and the point at which it stops working.
Why celeriac behaves as it does
Celeriac already tastes of celery, and strongly, which puts it in the same position as leek: it is an aromatic being used as a vegetable. Raw, in remoulade, it is acid and mustard that make it work — the mustard is not optional and the pairing is centuries old. Cooked into a purée, the celery note softens and it takes warm spicing that would be absurd on the raw version, particularly nutmeg and white pepper. Its own celery character makes celery seed redundant and lovage superfluous.
Classic
Long-established in at least one cuisine — the combinations you can rely on.
Mustard seed
ClassicCéleri rémoulade is celeriac and mustard, and the pairing is not decorative: the mustard is what makes raw celeriac edible in quantity, cutting a dense root that is otherwise heavy and slightly medicinal. It is one of the oldest fixed vegetable-and-spice pairings in French cooking.
How: In céleri rémoulade, with mayonnaise
- The raw preparation only; cooked celeriac wants different seasoning
Good
Nutmeg
GoodFor the cooked version, where the celery character softens and the root takes warm spicing that would be absurd on the raw salad. Nutmeg in a celeriac purée is standard central European practice.
How: In a celeriac purée
White pepper
GoodPale dish, pale pepper, and the fermented note suits a root that is already faintly funky. Black pepper is not wrong here so much as visually and aromatically louder than the dish wants.
How: In purées and gratins
Cuts and forms
Raw, remoulade, Puréed, Roasted, In stock. These do not all take the same spicing — the notes above flag where the difference matters.