Mashed Potatoes with Olive Oil and Parmesan

• 1.3 kg (3 lb) yellow waxy potatoes, peeled
• sea salt and freshly ground black pepper

Cook the potatoes in a generous amount of boiling salted water until easily pierced with a fork. Drain and mash with a fork, potato masher or whisk. Add the Parmesan, olive oil, black pepper and some more salt if necessary.