There's a really good video about that [1]. A quick summary is that the aftertaste is a chemical that's in vomit, so if you're not used to it in chocolate then

There's a really good video about that [1]. A quick summary is that the aftertaste is a chemical that's in vomit, so if you're not used to it in chocolate then the chocolate literally tastes of puke. But if you are used to it, from your childhood, then it tastes great. It's also the same chemical that gives parmesan cheese its pungency, so it's not like Americans are alone in liking it in their food. [1] https://youtu.be/J44svaQc5WY https://youtu.be/J44svaQc5WY