Prepare the Vegetables:
Shred the green cabbage, red cabbage (if using), and carrots finely using a sharp knife or a food processor. Place in a large mixing bowl.
Make the Dressing:
In a separate bowl, whisk together the mayonnaise, apple cider vinegar, sugar, Dijon mustard, celery seed, salt, and pepper until smooth and creamy.
Combine:
Pour the dressing over the shredded cabbage and carrots. Toss everything together until evenly coated.
Chill:
Cover the bowl and refrigerate for at least 1 hour before serving. This allows the flavors to meld and the cabbage to soften slightly.
Serving and Storage Tips
