Combine the mayo, vinegar, sugar, celery seed, salt, and pepper into a small mixing bowl. Whisk to combine.
Pour the coleslaw dressing over the shredded vegetables and mix well until completely coated. The mixture won’t look creamy at this point, and that’s ok!
Cover and chill in the fridge for two hours or overnight before serving. This will soften the vegetables and make the dressing creamier.