This was the product of a really boring lecture and Reddit: Hasselback potatoes.
I can unreservedly say, and I am by no means a good cook, this is one of the easiest and tastiest things I’ve ever made! Try it out when you have some spare time and a few spuds lying around. Make sure to put two wooden spoons either side of the potato when cutting though, as you need to make sure you don’t cut all the way through. I melted some flora with basil parsley salt and pepper then sliced a little more between each fin. Then cook it like any other potato.