01 - Preheat the oven to 430°F (220°C) and line a large baking sheet with parchment paper.
02 - Slice russet potatoes lengthwise into wedges, yielding 8 wedges per potato.
03 - In a large mixing bowl, combine potato wedges with olive oil, garlic powder, paprika, dried rosemary if desired, salt, and black pepper. Toss thoroughly to coat each wedge evenly.
04 - Place seasoned wedges in a single layer on the prepared baking sheet, arranging them skin-side down as much as possible.
05 - Bake for 30 to 35 minutes, flipping the wedges once halfway through the baking process, until they are crisp around the edges and tender inside.
06 - Remove from oven, top with chopped fresh parsley if desired, and serve immediately while hot.