Preheat some oil in a deep fryer or a pot to 300°.

Add the prepared potatoes to a large container filled with cold water.

Submerge the cut potatoes in the water and let them stand for about 10 minutes.

Next, move the potatoes around in the water with your hand to get off some starch, and then strain them in a colander and rinse them well with cold water for 3 to 4 minutes.

Let the potatoes drain off any excess water for an additional 2-4 minutes.

Add a few handfuls of the cut potatoes to the hot oil and cook for 3 minutes. Move them around after 90 seconds. You may need to do this in batches.

Remove the fries from the oil and keep them in the fryer basket or place them on a sheet tray lined with parchment paper.

Turn the oil up to 350°.

Add a few handfuls of the pre-fried potatoes to the hot oil and cook for 5-6 minutes or until crispy and browned on the edges. You can cook an additional 1 to 2 minutes to crisp up and brown more.

Drain the potatoes in the basket for no longer than a minute and then transfer them to a bowl and toss with salt. Serve immediately.