Preheat the oven to 425°F to 450°F
Peel the potatoes if desired
Cut the potatoes into even chunks
Place the potatoes in a pot and cover with cold salted water
Bring to a boil and cook until the edges are just tender
Drain the potatoes well
Shake the potatoes in the pot to rough up the edges
Let the potatoes steam dry for a few minutes
Add oil, salt, and pepper to a roasting pan
Heat the roasting pan in the oven until the oil is hot
Carefully add the potatoes to the hot pan
Turn the potatoes to coat them in oil
Roast for 20 to 30 minutes
Turn the potatoes halfway through cooking
Roast until golden brown and crisp
Serve immediately