Preheat your oven on a grill function to 250-260°C.
Throw the garlic, rosemary and EVOO into a large frying pan and heat to high, then turn down the temperature to a medium high heat.
Add the potatoes and cook them until browning and smelling fragrant. Sprinkle with plenty of salt and place into the hot oven for at least 20 minutes until golden and crispy. Toss occasionally if you wish.
Serve immediately with more salt if needed and fresh rosemary leaves on top.