1. Prepare the potatoes

• Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper.
• Peel and cut sweet potatoes into uniform wedges or cubes to ensure even cooking.

2. Season the potatoes

• In a large bowl, toss sweet potatoes with olive oil, rosemary, garlic powder, onion powder, salt, and pepper.
• Sprinkle in half of the Parmesan cheese and toss again to coat evenly.

3. Arrange on baking sheet

• Spread potatoes out in a single layer on the prepared baking sheet.
• Ensure they are not overlapping—crowding can cause steaming instead of roasting.

4. Roast until crispy

• Roast in the oven for 30–35 minutes, flipping halfway through for even browning.
• For extra crispiness, broil for the last 2–3 minutes, watching carefully to avoid burning.

5. Add final toppings

• Once roasted, remove from oven and immediately sprinkle remaining Parmesan cheese on top.
• Garnish with chopped parsley or extra rosemary if desired.

6. Serve hot

• Transfer to a serving dish and enjoy warm with your main course or as a flavorful snack on its own.