01 - Preheat oven to 430°F and line a large baking sheet with parchment paper.
02 - Slice each russet potato lengthwise into 8 uniform wedges.
03 - Place potato wedges in a large mixing bowl. Add olive oil, garlic powder, paprika, rosemary if using, salt, and black pepper. Toss thoroughly to ensure each wedge is evenly coated.
04 - Spread the coated potato wedges on the prepared baking sheet in a single layer, skin-side down whenever feasible.
05 - Bake for 30 to 35 minutes, turning the wedges once about halfway through, until edges are golden and interiors are tender.
06 - Remove wedges from the oven, garnish immediately with chopped fresh parsley, and serve while hot.