These simply mashed sweet potatoes taste so good it's hard to stop eating them! It's amazing what just a little butter, sour cream and a few scallions can do without all the frills we usually add. Then again, the beautiful sweet potato doesn't need much help. These make a wonderful addition to a hearty meal and pair well with most meats, especially pork. I pre-bake the potatoes in the oven because I think they have the best flavor, but I included steps for cooking them in the microwave as well. The dish will take from 25 minutes using the microwave to 65 minutes using the oven, not counting the cooling period post cooking.