Cooking crispy roast potatoes is not hard, there are just some steps you need to follow. Step 1 cooking temperature preheat your oven to 200°C or 395°F Step 2 right variety of potato, you'll need to choose the right kind of potato. I always go for an Agria potato you can also use Maris Piper or Yukon Golds. Step 3 dry the potatoes Peel and wash the potatoes, you will need to dry them well, this is an important step. Step 4 using a cooking medium heat a cast-iron pan or your favorite oven-proof pan, add a drizzle of rice bran or vegetable oil, and a nob of salted butter. Step 5 caramelization place in the potatoes, caramelize on the top and the bottom, and season with Himalayan pink salt and freshly ground black pepper add some fresh herbs like rosemary or thyme. Place into the oven for about 25 minutes.