Allow me to up the stakes for you. We are having an epic potato year, so the potatoes were fresh out of the ground. Sliced and dropped in ice water for 20 minutes. Par boiled (first time I have tried it) with a splash of vinegar, and just cooked to tender. Then doubled fried. First fry just to get a light crisp on them. Let them drain and cool. I made the burgers, then dropped them back in for a couple minutes to crisp them up.
The perfect french fry. Crispy outside, poofy centers.
I made a new rule. If I am pulling out the fryer, We need to make a couple of dishes so it doesn't seem like such an effort. So the big fish fry is coming up, and I might try ginger beef tonight. I always make it in the wok.