1. Wash the purple sweet potato and bitter gourd.
2. Cut the bitter gourd in half and use chopsticks or a small spoon to empty the inside.
3. Single crystal rock candy is ready.
4. Put rock sugar in the steamer and bring it to a boil.
5. Add bitter gourd to blanch water.
6. Immediately remove it and put it in cold water to cool.
7. Remove and stand up to drain the water.
8. The purple potato is peeled and cut into small pieces, wrapped in plastic wrap, pierced with a toothpick, and steamed in a steamer.
9. Crush it with a small spoon.
10. Put the bitter gourd with a spoon and cut into small circles.
11. For serving, use only the tomato peel to make a rose for decoration, the finished product.
