Buffalo wings are traditionally served with celery for a few reasons:
Flavor Balance: The clean, crisp, and slightly bitter flavor of celery helps to balance out the spiciness and tanginess of the buffalo sauce. It provides a refreshing crunch that contrasts nicely with the soft, juicy texture of the chicken wings.
Palate Cleanser: Celery acts as a palate cleanser, refreshing your mouth between the intensely flavored wings. This can help you better taste and appreciate each wing.
Heat Relief: The coolness of the celery can provide a bit of relief from the spiciness of the wings, similarly to the traditionally served blue cheese or ranch dip.