Peel or scrub your potatoes.
Have a bowl of cold water ready.
Shred your potatoes and immediately put them into the bowl of water.
Soak the potatoes for a few minutes.
Squeeze the potatoes over the bowl of water to remove excess starch.
Preheat a large cast iron skillet over high heat and add a good amount of butter.
Add the shredded potatoes, turn the heat down to medium-high, and spread them out in an even layer.
Wait until the bottom is crispy before flipping.
Season the potatoes generously with salt and freshly ground pepper.
Cook until very crispy and brown on the bottom, then flip and cook on the other side.
