01 -
Preheat oven to 390°F. Peel and chop potatoes into even pieces.
02 -
Place potatoes, rosemary sprigs, and salt into a large pot of water. Bring to a boil.
03 -
Parboil potatoes for 12 minutes until knife encounters slight resistance when inserted.
04 -
Pour 2–3 tbsp olive oil into a baking dish and heat in the oven until very hot.
05 -
Drain potatoes, discard rosemary stems but retain leaves. Return potatoes to pot, cover, and shake firmly to rough up surfaces.
06 -
Transfer potatoes to the hot baking dish, drizzle with remaining olive oil and salt evenly, and roast for 45 minutes.
07 -
Remove, turn potatoes for even cooking, and roast an additional 45 minutes until golden and crispy.