01 - Preheat oven to 430°F and line a large baking sheet with parchment paper.
02 - Slice the russet potatoes lengthwise into wedges, yielding eight pieces per potato.
03 - In a mixing bowl, toss potato wedges with olive oil, garlic powder, paprika, rosemary if using, salt, and black pepper until evenly coated.
04 - Place seasoned wedges onto the prepared baking sheet in a single layer, ensuring the skin side faces downward when possible.
05 - Bake wedges for 30 to 35 minutes, turning once halfway through, until edges are golden and crisp and interiors are tender.
06 - Remove from oven, garnish with chopped fresh parsley, and serve hot.