Creating perfectly roasted potatoes without a foil is simple when you follow these straightforward steps:

1. Preheat the Oven: Set your oven to 425°F (220°C) to ensure that it gets hot enough for roasting.
2. Wash and Cut Potatoes: Scrub the potatoes under cold water. Cut them into even-sized pieces, about 1-inch chunks, to promote even cooking.
3. Dry the Potatoes: Pat them dry with a clean towel to remove excess moisture. This step enhances crispiness.
4. Season the Potatoes: In a large mixing bowl, toss the potato pieces with olive oil, salt, black pepper, garlic powder, and paprika if using. Ensure they are evenly coated.
5. Spread on a Baking Sheet: Arrange the seasoned potatoes on a baking sheet in a single layer to ensure proper roasting and avoid steaming.
6. Roast: Place the baking sheet in the preheated oven. Roast for 30-40 minutes, flipping the potatoes halfway through for even browning.
7. Check for Doneness: The potatoes are ready when they are golden brown and crisp outside, and tender inside. A fork should easily penetrate the pieces.
8. Garnish and Serve: Once cooked, remove from the oven. You may sprinkle fresh herbs on top for extra flavor before serving.

These straightforward instructions will lead you to perfectly roasted potatoes that will become a staple in your cooking repertoire.