What is a unique topping on a buffalo chicken sandwich?

The unique topping on a buffalo chicken sandwich is hot sauce. This sauce is crucial to the dish, as it provides the signature spicy flavor that characterizes buffalo chicken. Traditionally, buffalo chicken sandwiches are made with fried or grilled chicken that has been tossed in hot sauce, often combined with butter and other ingredients to create a rich and tangy coating.

While barbecue sauce, ranch dressing, and salsa can all be used as condiments on various sandwiches, they do not define the buffalo chicken flavor profile in the same way that hot sauce does. The use of hot sauce not only highlights the dish's origins from Buffalo, New York, but it also distinguishes it from other types of chicken sandwiches, making it a quintessential component of a buffalo chicken sandwich.