Preheat the oven to 425°F / 220°C
Wash and dry the potatoes
Peel if desired
Cut into even-sized pieces
Toss with oil, salt, and pepper
Add optional seasonings if desired
Spread in a single layer on a baking tray
Roast for 25 to 40 minutes
Turn halfway through cooking
Roast until golden and crisp outside
Check that the inside is tender
Serve immediately