Ingredients

2 pounds celery root
1 3/4 teaspoons kosher salt
3 tablespoons freshly squeezed lemon juice
1 cup good mayonnaise
1 tablespoon Dijon mustard
1 tablespoon whole-grain mustard
2 teaspoons Champagne vinegar or white wine vinegar
Pinch freshly ground black pepper

Instructions

Use a serrated knife to peel the celery root of all the brown outer portions,
like peeling a pineapple. Cut the celery root into thin matchsticks with a mandoline, or grate them in a food
processor fitted with the coarsest grating blade. With the food processor, press a little as you feed the
chunks through and you will have larger shreds. Place the celery root in a large bowl, sprinkle with 1 1/2
teaspoons of the salt and 2 tablespoons of lemon juice, and allow to stand at room temperature for about 30
minutes.

Meanwhile, in a small bowl whisk together the mayonnaise, the 2 mustards, the remaining tablespoon of lemon
juice, the vinegar, the remaining 1/4 teaspoon of salt, and the pepper. Add enough sauce to lightly moisten
the salad. (You may have some sauce left over.) Serve cold or at room temperature.