roasted sweet potatoes

I specially chose smaller sweet potatoes to roast in order to save some time and cost, but the small sweet potatoes were roasted for two hours! Fortunately, roasting sweet potatoes in this way does not require too much trouble, and at the same time, nothing you do will be affected. There is no strict limit on the length of time. Even if you are busy with other things and forget about the time, it doesn't matter. More time to roast it will only add a burnt aroma to it. Therefore, roasting sweet potatoes really have a good temperament, simple, easy-going, not overly particular, but also very connotation.