What is your recipe for great french fries?

I am not looking for healthy recipes, just the opposite, a recipe that will consistently result in great french fries similar to McDonald’s. I rarely eat at McDonald’s, but when I do, I love their french fries. I have looked some on Google and tried some ideas to no avail.
My fries tend to come out either soggy or crisp and mealy; whether I partially cook them, freeze them and cook them again in my deep fryer they are OK.
It has to be about the potato; moisture content of the potato; the type of potato; the cooking method and oil used to create the ultimate fry.
So, if someone knows the secret great recipe that they are reluctant to share since it is so valuable-go ahead anyways. I have tried plenty of good to great french fries; but to me, McDonald’s, I am sorry to say still rules.