Preheat the oven to 425°F. Line a baking sheet with parchment paper to prevent sticking.
Pierce each potato several times with a fork to allow steam to escape during baking.
Arrange the potatoes on the prepared baking sheet. Generously coat each one with extra-virgin olive oil, ensuring full coverage.
Sprinkle sea salt liberally over the oiled potatoes, creating a flavorful crust on the skin.
Place the tray in the oven and bake for 45 to 60 minutes. The potatoes are done when a fork easily pierces the center and the skins have become crisp.
Remove from the oven. Make a slit in the top of each potato and gently fluff the interior with a fork.
Serve immediately with your favorite toppings such as butter, sour cream, chives, or cheese.