I like the big baking potatoes for fries,they seem to stay firmer.Usually these days I slice them up,season and coat with olive oil.Then I spread them out in a cast iron skillet and bake them in the oven at 400 degrees for about 40-45min.
This is how we've been doing it for decades now--except we usually use a thicker cookie-sheet. Turn them once during the 40-45 minutes to get both sides crispy. Far less trouble than deep-frying, and excellent results.
