1. Oranges are reserved.
2. Peel the skin, and then peel it into separate small flaps.
3. Hawthorn cake is set aside.
4. Cut into small pieces.
5. Stir the sweet potato starch water for later use.
6. Rock sugar spare.
7. Put an appropriate amount of water in the pot and pour the hawthorn cake.
8. Bring to a boil and cook for about five minutes until the hawthorn cake is completely melted.
9. Pour in the oranges and cook for another five minutes.
10. Continue to pour the sweet potato starch water, stir it with a spoon, and continue to cook for about three minutes.
11. Add rock sugar and cook for a while.
12. Put it into a bowl.
13. Dessert.
