Step 1

Arrange oven racks in lower-third and upper-third of oven.

Step 2

Preheat the oven to 425°F.

Step 3

Coat two large baking sheets with nonstick cooking spray or olive oil.

Step 4

Cut the potatoes in half. Transfer to a large mixing bowl and add the olive oil, rosemary, salt, and pepper. Toss well. Arrange the potatoes cut side down in a single layer on the prepared baking sheets.

Step 5

Roast the potatoes on upper-third and lower-third racks of oven for 15 minutes.

Step 6

Swap the positions of the baking sheets and continue roasting until potatoes are tender and well browned on cut sides, about 15 minutes.

Step 7

Check to see that potatoes are done. Remove from oven or add time as needed.

Step 8

Transfer the potatoes to a serving bowl. Serve with fresh rosemary sprigs for garnish if desired.