Oh yes these are slow food indeed. At least 40 minutes to bake and nowhere near the common chip when it comes to fat content & you get to choose the quality of the fat you use.
The secret lies in cutting the fries the same size. I do use a little machine designed for the purpose but you can just as well do it by hand. Soak the fries in cold water to get rid of some of the starch, since & dry. Coat them in a good quality oil that can be heated (no extra virgin olive oil) so they are just covered, no extra oil needed. I added some thyme and lemon zest to give them a little kick. (Isabella’s in NY is my source of inspiration there). Bake them on a tray at 200°C for 20 minutes on each side. Yes, that means turning them one by one 😉 Make sure they do not touch each other which ensures that they get crispy.