Shrimp Salad With Horseradish Rémoulade

Preparation

1. Step 1

   Bring 6 cups water to a boil in a medium saucepan. Add bay leaf, thyme sprig, 1 tablespoon salt and 1 teaspoon pepper. Reduce heat to a simmer and add shrimp. Cook shrimp until shells turn red, only a minute or two. Transfer to a large bowl of cold water, let cool, then peel and set aside.

2. Step 2

   Meanwhile, put beets in a saucepan, cover with water and bring to a boil. Reduce heat and cook at a brisk simmer until tender when tested with a skewer, about 20 minutes. Remove and let cool on a plate until just cool enough to touch. Slip off beet skins and discard. Cut beets into small wedges. Put in a bowl, season generously with salt and pepper, and add vinegar and oil. Toss and let marinate for 15 minutes. (You may prepare beets up to a day ahead.)

3. Step 3

   Make the rémoulade: Stir together crème fraîche, mustard, cayenne, horseradish and capers. Add ½ teaspoon salt, and stir in tarragon, parsley and dill. Refrigerate for an hour (or as long as overnight). Just before serving, stir in lemon juice and check seasoning.

4. Step 4

   Assemble the salad just before serving: Make a bed of watercress on a large platter. Spoon beets and any juices evenly over watercress, then sprinkle celery slices over top. Arrange shrimp here and there and surround with hard-cooked egg halves. Give a last, very light sprinkle of salt and serve. Pass rémoulade at the table.