Raw Grated Carrot Salad

This traditional carrot salad is available in every charcuterie and traiteur [takeaway food store] throughout France, along with huge bowls of celeriac bound in a mustard-flavoured mayonnaise known as rémoulade. The carrots should be young and sweet and grated in fine longish threads. The old-fashioned Mouli-julienne rotary cutter makes the best grated carrots but the vegetable-cutting attachments of food processors also do a fine job. Failin