Wash and peel potatoes. Slice them into thin strips.
Place in a bowl of water and refrigerate for at least 2 hours. This process pulls the starches out and makes the fries more crispy when finished.
Remove fries from water and pat them reasonably dry using paper towels. Excess water will cause a volatile reaction in the deep fryer so make sure this step is done thoroughly
Turn the deep fryer to 375°. Lower basket of fries and allow to fry for 5 minutes
Remove fries from the fryer. Allow them to cool for at least 5 minutes. They are ready when they can be handled bare handed with no issue.
Put the basket of fries back in the fryer. Allow it to go for at least another 5 minutes. The fries are ready when they are the correct golden color.
Remove fries from the fryer and place over a cooling rack. Apply kosher salt to the pile of fries as they are cooling. Eat them while they're hot!