This is one of those classic French salads that feels like it's a distant cousin of coleslaw. It's so popular in France that you can even buy the celeriac pre-shredded, but why bother when the fresh stuff is available? Celeriac remoulade is the perfect accompaniment to charcuterie, cold meats and even smoked fish.
1 small head of celeriac, peeled
5-6tbsp homemade or good-quality mayonnaise
1tbsp Dijon mustard
1-2tbsp chopped parsley
With a very sharp knife or a mandolin, cut slices of celeriac about 2cm thick, then cut those slices into 2cm shreds. Mix the mustard, mayonnaise and parsley together, then mix with the celeriac and season to taste.