Preheat oven to
400F (200C / Gas 6). Place potatoes on a parchment-lined (baking
paper-lined) baking sheet. Combine olive oil and garlic in a small bowl.
Drizzle potatoes liberally with oil and garlic, then sprinkle evenly with
rosemary leaves and salt. Bake, turning occasionally, until golden and
crisp, 30-35 minutes.
oven and serve piping hot with extra salt.