The method of keeping pitaya dumplings from discoloring is as follows.

1. Steam longan batter over medium heat for 20 minutes.

2. Don't simmer the batter after steaming for 20 minutes. Open the lid immediately to prevent the pitaya from fading.

3. Scrape the dough out of the bowl with a spoon, put it on the chopping board, cool it slightly until it is not hot, then add the stuffing and wrap it into jiaozi.