Apple cider vinegar — 1 burger recipe
Apple cider vinegar is called for by exactly one recipe on Burgerman. In these builds it is what most people actually taste first, and small changes to it move a recipe more than the patty does. It is used in KFC Smoky Mountain BBQ Sandwich (Copycat). The highest-scoring recipe using it is KFC Smoky Mountain BBQ Sandwich (Copycat) at 8.5 out of 10. It turns up most often alongside paprika, salt, garlic powder.
