01 - Preheat oven to 430°F and line a large baking sheet with parchment paper.
02 - Using a large knife, slice each potato lengthwise into 8 even wedges.
03 - In a large mixing bowl, combine potato wedges with olive oil, garlic powder, paprika, rosemary if using, salt, and black pepper. Toss until wedges are thoroughly coated.
04 - Place seasoned wedges on the prepared baking sheet in a single layer, skin-side down whenever possible.
05 - Bake for 30 to 35 minutes, turning wedges once halfway through, until edges are golden and crisp and potatoes are tender inside.
06 - Remove tray from oven, garnish with chopped fresh parsley, and serve hot.