01 - Preheat the oven to 430°F and line a large baking sheet with parchment paper.
02 - Slice each potato lengthwise into 8 even wedges.
03 - In a large mixing bowl, toss potato wedges thoroughly with olive oil, garlic powder, paprika, rosemary if using, salt, and black pepper until evenly coated.
04 - Place the coated wedges in a single layer on the prepared baking sheet, preferably with the skin side down.
05 - Bake for 30 to 35 minutes, turning the wedges once halfway through, until golden brown and crisp on the edges with a tender interior.
06 - Remove the baking sheet from the oven, sprinkle with chopped fresh parsley, and serve immediately while hot.