Combine 4 cups of shredded green cabbage and 1 cup of shredded carrots in a large mixing bowl.

In a separate bowl, whisk together 1 cup of mayonnaise, 2 tablespoons of apple cider vinegar, 1 tablespoon of sugar, 1 teaspoon of celery seed, 1/2 teaspoon of salt, and 1/4 teaspoon of black pepper until smooth.

Pour the dressing over the cabbage and carrots, and toss until everything is evenly coated.

Cover the mixture and refrigerate for at least 30 minutes before serving.