Best Baked Potato

Bahan-bahan (4 porsi)

• 1 to 4 medium Russet potatoes (7 to 9 ounces each)
• 1 tablespoon melted butter or extra-virgin olive oil
• Flaky sea salt or kosher salt, for sprinkling
• Desired toppings, such as sour cream, butter, chives, salt and pepper