Celeriac & Apple Rémoulade with Crystallized Celeriac Leaves

What better to have as part of a fresh tray of crudités than a celeriac (celery root) rémoulade – well, perhaps, a rémoulade with a little freshly cut, crunchy green apple to bring some essential acidity to cut through the richness of the mayonnaise. You’ll see what I mean when you try it, as the apples really raise the dish to another level. I have also used the leaves of the celeriac, though if you cannot find celeriac with the leaves attached at your local market or superma