1. Preheat Oven & Prep Pan: First, preheat your oven to 425°F (220°C). Then, drizzle 1 tablespoon of olive oil onto a large baking sheet. This helps create crispy oven-roasted potatoes.

2. Wash & Cut Potatoes: Next, thoroughly wash the potatoes. You can peel them if desired, but I often leave the skin on for extra fiber and texture. After washing, cut the potatoes into 1-inch cubes. Uniform sizes ensure even cooking for your oven-roasted potatoes.

3. Season Potatoes: Transfer the cut potatoes to a large bowl. Add the remaining 2 tablespoons of olive oil, salt, black pepper, garlic powder, and dried rosemary (if using). Toss everything together until the potatoes are evenly coated. This step is crucial for flavorful oven-roasted potatoes.

4. Arrange on Baking Sheet: Now, spread the seasoned potatoes in a single layer on the prepared baking sheet. Ensure they are not overcrowded. Crowding the pan steams the potatoes instead of roasting them, preventing those desirable crispy edges.

5. Roast: Finally, bake for 30-40 minutes, flipping them halfway through. Continue roasting until the potatoes are tender on the inside and beautifully golden brown and crispy on the outside. Serve your golden roasted potatoes immediately. Enjoy your Perfect Oven-Roasted Potatoes!