I don’t know where you got Qingbu Liang in Hainan, because the ingredients are different in different places in Hainan.
I am from Wenchang and the ones sold outside here are Cook peanuts, macaroni, jelly cubes, red dates, mung beans, barley, and taro separately. Don’t overcook them. After cooking, pick them up and put them in the refrigerator.
When selling, put these things according to the needs of customers. Mix together and add coconut milk. I usually use old coconut meat minced and then squeezed out with water. In some places, coconut milk condensed milk or simply brown sugar water is used, and a few ice cubes are added.
Of course, the raw materials used in other places are not the same. You can add watermelon cubes, pineapple cubes, pearls, etc.
One of our restaurants also added salty corn kernels, which tastes salty and sweet. The salty and sweet taste is pretty good