Peel the celeriac and apple, then grate them using a box grater or food processor.
STEP 2
In a mixing bowl, combine the grated celeriac and apple. Add the mayonnaise, lemon juice (or apple cider vinegar), and sugar if desired. Mix well to ensure everything is evenly coated.
STEP 3
Add salt and pepper to taste, adjusting seasoning to your preference.
STEP 4
Let the salad sit in the refrigerator for at least 30 minutes before serving to enhance the flavors.
STEP 5
Garnish with fresh parsley or dill and serve chilled. Smacznego!