Ingredients

4 Japanese sweet potatoes, scrubbed 

Extra-virgin olive oil, for drizzling 

Flaky sea salt, such as Maldon, and freshly ground pepper, for serving 

Preparation

Preheat oven to 400 degrees. Prick sweet potatoes all over with a fork; arrange on a parchment-lined baking sheet. Roast until very tender, about 1 hour, depending on size. Split open, drizzle with olive oil, and season with salt and pepper; serve.