The smell of these babies frying in extra virgin olive oil reminds me of my childhood days in Kefalonia. The aroma would perfume the whole village when my yiayia would fry these potatoes. Back when I was a little girl in the 80's, Greeks were still only using extra virgin olive oil, even for frying. Nowadays, it's a bit different in Greece with cheaper oils readily available. You can use corn oil if you want to make these often, but you have to do it at least once with extra virgin olive oil. Don't be cheap.