3 celery root and pan seared Recipes

cubes peeled celery root, cubes peeled parsnips, cubes peeled russet potato, coarse kosher salt, half and half, warm, reserved pink-peppercorn butter (from pan-seared strip steak recipe ; optional)

mayonnaise, chopped red bell pepper, chopped yellow bell pepper, chopped drained capers, dijon mustard, chopped fresh tarragon leaves , or to taste, chopped fresh chives, fresh lemon juice , or to taste, a 1 1/4-lb celery root (sometimes called celeriac), sea scallops (about 30), olive oil