1. Pour milk, sugar, and insulated water and stir well.
2. Pour glutinous rice flour, starch, freshly-stirred sugar milk, soybean oil, and stir well in a bowl.
3. Cover with plastic wrap, pierce a few small holes, and steam until transparent (about 15 minutes).
4. Press evenly while hot.
5. Wrap, flatten, and refrigerate in the refrigerator.
6. Whipped cream, granulated sugar, beat till 9 to distribute.
7. Divide into groups and roll them into skins.
8. Squeeze the whipped cream and put on the diced mango.
9. Wrap it, freeze it and eat it for a better taste.
