Instructions
In a large bowl, whisk together mayonnaise, white vinegar, apple cider vinegar, granulated sugar, celery seed, and salt and black pepper (to taste).
Add shredded green cabbage, shredded red cabbage, and shredded carrot, and toss until evenly coated.
Refrigerate for at least 1 hour before serving to let the flavors blend and the slaw soften.