Tossed in a flavourful harissa-infused olive oil, these crispy sweet potatoes are super simple to make and a delicious side to lots of different meals. Use whatever kind of harissa you'd like, just note that different blends, brands and recipes can vary in heat so be cautious!
Preheat oven to 220°C/425°F. Line a large, rimmed baking sheet with parchment paper. Add the harissa and olive oil to a large mixing bowl and whisk until thoroughly combined.
Add the sweet potatoes and sprinkle over the cornstarch. Season generously with salt and pepper and mix to combine.
Spread the potatoes over the prepared baking sheet and move to the oven. Cook until very tender and crisp, about 30 minutes, stirring once halfway through, Serve immediately.