White vinegar
White vinegar appears in 12 of the 123 recipes on Burgerman, roughly 10% of the library. In these builds it is what most people actually taste first, and small changes to it move a recipe more than the patty does. You will find it in Big Mac Taco, Big Mac Hot Dog and Croissant Big Mac, among others. The highest-scoring recipe using it is Big Mac Taco at 9.3 out of 10. It turns up most often alongside black pepper, dill pickle, salt.
