3 celery root kohlrabi apple Recipes

apple cider vinegar, yellow mustard seeds, mixed root vegetables (such as parsnips, kohlrabi, celery root, turnips, and rutabagas), peeled, cut into 1 cubes, thick-cut applewood-smoked bacon, diced, white onion, diced, dark brown sugar, kosher salt , freshly ground pepper, chopped flat-leaf parsley

celery root (celeriac), peeled, cut into 3/4 cubes, kosher salt, kohlrabi, peeled, cut into 1/2 cubes, russet potatoes, peeled, cut into 1 cubes, granny smith apple (1/2 lb), peeled, cored, cut into 1 cubes, unsalted butter, freshly ground black pepper, fresh chervil sprigs