Wash and shred the cabbages.

Wash and grate the carrots.

Put all the shredded and grated vegetables in a large bowl.

In a medium bowl, mix the mayonnaise, vinegar, sugar, parsley, celery salt, and ground pepper together thoroughly with a whisk.

Add the dressing to the shredded cabbages and grated carrots and toss thoroughly.

Cover and place in the fridge for at least two hours or overnight.

Toss again before serving.