In a medium bowl, whisk together the mayonnaise (or Greek yogurt), honey, apple cider vinegar, Dijon mustard, celery seed (if using), salt and pepper until well combined. Taste and adjust the flavors if needed. If you want it sweeter, add a little more honey. For a tangier dressing, add a little more vinegar. Add salt and pepper to taste.
1 cup mayonnaise , 2 tablespoons honey, 2 tablespoons apple cider vinegar, 2 teaspoons Dijon mustard, 1 teaspoon celery seed, ¼ teaspoon salt, ⅛ teaspoon black pepper