NOTE: USE ONLY FRESH SWEET POTATOES, not canned. Canned usually has sugar in them. To cook sweet potatoes, peel 5 medium potatoes and place all of them in large zip lock bag. Cook in microwave with bag sealed for 7-8 minutes on high. Bag will expand but it won't explode. Poke potatoes with fork to check tenderness. Mash with beater immmediately but let cool before putting in the recipe.