Roasted Sweet Potatoes
1.
Wash the sweet potatoes and set aside.
2.
Wrap it in tin foil and place it on a baking tray.
3.
Put it in the preheated oven, heat up and down at 190 degrees, and bake for 40 minutes.
4.
After being baked, let it cool down for a while and serve.
Tips:
If the size of the sweet potato is relatively large, the baking time should be extended appropriately, about 60 minutes.