1. Preheat oven to 425°F. Toss potatoes in grapeseed oil. Place on a foil-lined cookie tray and bake for 40 minutes or until potatoes become golden brown. Make sure to mix around halfway through.
2. Combine rosemary, garlic and salt and pepper in a bowl and toss the fries with the mixture. Bake for another 5 minutes and serve hot out of the oven.