1. Preheat your oven to 425.
2. Put sweet potato chunks into a large bowl, add oil and mix to cover well.
3. In a small bowl or cup mix all the spices and the salt together and stir until well blended.
4. Sprinkle the sweet potaoes with this mixture and mix until all the potatoes are well covered.
5. Turn onto a cookie sheet and spread out evenly.
6. Bake on the lowest rack in your oven for about 20 minutes.
7. Serve warm.
8. Which won't be a problem as they'll all be gone way before they could get cold!