KFC, Gravy
Anyone who has made gravy at home knows that it can be a pretty messy process, and the same goes at most KFC locations. The gravy you get with your mashed potatoes and biscuits is made from the drippings of the fried chicken that is cooked in the kitchen each day. So, the gravy you’re eating might be made from chicken that was cooked days, or even weeks, ago, depending how long it was sitting in the fridge.