Preheat: Preheat your oven to 400°F (200°C). Position the oven rack in the center.
Wash & Dry: Wash the sweet potatoes thoroughly. Pat them completely dry with a kitchen towel (crucial for crispy skin).
Pierce: Use a fork to pierce the skin of each sweet potato 6-8 times to allow steam to escape.
Season (Optional): Rub the potatoes lightly with olive oil and sprinkle with sea salt.
Bake: Place the sweet potatoes directly on a baking sheet lined with parchment paper. Bake for 45–60 minutes, depending on size.
Check: At the 45-minute mark, insert a fork into the thickest part. If it slides in easily with no resistance, they are done.
Serve: Let cool for 5 minutes, slice open, and add your favorite sweet or savory toppings!