Preheat the oven to 350°F and slice the potato once lengthwise, slightly to the left or right of its center.
Place the potato between 2 wooden spoons with the exposed side facing up and make diagonal incisions in a grid-like pattern, stopping the cut when the knife hits the wooden spoons.
Place the potato on a baking tray, drizzle vegetable oil over it, and season with salt & pepper. Transfer the baking tray to the oven and bake at 350°F for 45 minutes. For an extra moist potato, sporadically brush vegetable oil over it while it's baking in the oven. Take the potato out of the oven and top it off with 1 of the following flavor combinations.