Much to the chagrin of my mother, I made it a point about a decade ago to standardize old family recipes on "from scratch" versions. As part of the process, I also did some research on old recipes and fixed some of the corruption of these recipes that occurred during the copying and recitation, bolstering them with culinary techniques that were in use at the time. I also captured things that drift over time, such as…
Thank you for this. I had never considered this "drift" in recipes and ingredients.
A beverage example is the Piña Colada. The original recipe calls for Coco Lopez (see the Regan, The Joy of Mixology), and while you could substitute for some other coconut cream (confusingly, not cream of coconut), it's got the expected amount of sugar and thickeners in that make the classic drink. It's a specialty food in Europe and I assumed it was an antiquity, but no, our local supermarket sells it.