01 -
Place shredded cabbage, shredded carrots, sliced red onion, and chopped parsley (if using) into a large mixing bowl.
02 -
In a separate small mixing bowl, whisk together mayonnaise, apple cider vinegar, honey or sugar, Dijon mustard, and celery seed until smooth and creamy.
03 -
Pour the dressing over the vegetable mixture and toss gently until all ingredients are evenly coated.
04 -
Add salt and black pepper to taste, mixing lightly to combine.
05 -
Cover and refrigerate for at least 30 minutes to allow flavors to meld. Stir before serving and adjust seasoning if necessary.