Salt and a little bit of pepper.
Skin has a mildly salty-sour flavour if it's human skin, so if you put a lot of sauce it'll just taste like hard flavorless dried potato strips.
Aka it'll just taste like sauce.
If you want skin flavor to stay, you can't have too much on it.
It won't be like pig or duck skin that has a lot of fat so that guves i...... reply
