01 - Set oven to 430°F and line a large baking sheet with parchment paper.
02 - Slice each potato lengthwise into 8 wedges.
03 - Toss potato wedges in a large bowl with olive oil, garlic powder, paprika, rosemary if using, salt, and black pepper until evenly coated.
04 - Place potatoes on the 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 crisp and centers are tender.
06 - Remove from oven, sprinkle with chopped parsley if desired, and serve immediately.