Note
1. Preheat your conventional oven to 190˚C (375˚F).
2. Roast potatoes in the oven until they’re easily pierced with the tines of a fork (or a cake tester), but not mushy (about 35 minutes).
3. Add maple syrup, cinnamon, peppercorns, harissa and Aleppo pepper in a small saucepan and bring to a simmer; hold there for 3 minutes, then turn off the heat.
4. Fire up your Ooni oven.
5. Slice the sweet potatoes into shingles about a half a centimetre thick.
6. Layer sweet potatoes in a baking dish, overlapping the shingles.
7. Place in your Ooni oven and cook until the sweet potatoes are caramelised on top, about 5 minutes.
8. Remove from the oven and sprinkle with chopped pecans.