Perfect for Yukon golds: Turn the oven to 400dg, using the convection roast setting if you’ve got one. Pour a thin film of olive oil into a rimmed baking sheet and sprinkle liberally with sea salt. Trim about 1 pound of potatoes, remove any icky spots, and cut them in half crosswise. Once the potatoes are in the pan, rub them all over in the oil, and put them cut side down. Roast, brushing with the salted oil every 15 minutes or so, until they release easily, 30 to 60 minutes, depending on their size.
