01 - Set oven to 430°F (220°C) and line a large baking sheet with parchment paper.
02 - Slice each potato lengthwise into 8 uniform wedges using a sharp knife.
03 - Combine potato wedges in a mixing bowl with olive oil, garlic powder, paprika, rosemary, salt, and black pepper. Toss until each wedge is evenly coated.
04 - Lay seasoned wedges in a single layer skin-side down on the prepared baking sheet.
05 - Place baking sheet in the oven and roast for 30 to 35 minutes, rotating wedges once halfway through, until golden-brown, crisp at the edges, and tender inside.
06 - Remove baking sheet from oven, sprinkle hot wedges with fresh parsley if desired, and serve immediately.