Found a simple recipe to share. Method: 1.Bring water to boil, add ginger into it. 2.Quickly peel sweet potato and cut into small pieces as it turns black easily. Put them into the boiling water and turn to medium heat once the water boils again. 3.Add rock sugar and milk to your taste when the sweet potato turns soft. Serve hot or cold. 做法： 1.先把清水放入煲內煮滾，放下薑片。 2.要快手把番薯去皮，因為遇上空氣很快變黑。切成小塊。隨即放入滾水內，水再滾後，轉慢中火，煲至蕃薯變軟林，下冰糖（甜度可因應各人口味）和牛奶，即成。
