01 - Preheat the oven to 425°F. Line a large baking sheet with parchment paper or grease lightly with oil.
02 - Place the cubed potatoes in a large pot, cover with cold water, add a pinch of salt, bring to a boil, then simmer for 5 minutes. Drain well and let steam dry for one minute.
03 - In a large mixing bowl, toss the potatoes with olive oil, kosher salt, black pepper, garlic powder, dried rosemary, and smoked paprika until evenly coated.
04 - Spread the potatoes in a single layer on the prepared baking sheet, ensuring they are not crowded.
05 - Roast in the oven for 35 to 40 minutes, turning once halfway through, until golden brown and crispy on all sides.
06 - Remove from the oven, sprinkle with chopped fresh parsley if desired, and serve hot.