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