01 - Preheat the oven to 430°F and line a large baking sheet with parchment paper.
02 - Slice potatoes lengthwise into wedges, yielding 8 slices per potato.
03 - Place the wedges in a large bowl and toss evenly with olive oil, garlic powder, paprika, rosemary if desired, salt, and black pepper.
04 - Position potato wedges in a single layer on the prepared baking sheet, keeping skin-side down as much as possible.
05 - Bake for 30 to 35 minutes, turning wedges once halfway through, until edges are crisp and interiors are tender.
06 - Remove from oven, sprinkle with fresh parsley if using, and serve immediately while hot.