01 - In a large bowl, mix together the green cabbage, red cabbage, and shredded carrots until evenly distributed.
02 - Whisk mayonnaise, sour cream, apple cider vinegar, Dijon mustard, honey, celery seed (if using), salt, and black pepper in a medium bowl until smooth and homogeneous.
03 - Pour the dressing over the cabbage and carrots mixture and toss thoroughly to ensure all pieces are coated evenly.
04 - Cover the bowl and refrigerate for a minimum of 30 minutes to allow the flavors to meld together.
05 - Before serving, toss the coleslaw once more and adjust seasoning if necessary.