This is a standard winter salad all over Europe.
-Peel and grate half a celery root.
-Place the grated celery root in a bowl and add 1.5 TBS white wine vinegar.
-In a small bowl, combine the following and stir well:
3 TBS mayonnaise
2 tsp Dijon mustard
1 TBS heavy cream
1/2 tsp dried tarragon
Sea salt and pepper to taste
-Toss the dressing with the celery root and chill for at least 1 hour before serving.