Peel oranges and remove fascia and seeds for later use. (It is worth mentioning that the peel, inner membrane, fascia and seeds of oranges have bitter taste, which will affect the taste of finished products, so it must be removed as much as possible. A small way to remove seeds is to use a toothpick to open the abdomen of orange petals and then take out the seeds.
Put oranges, rock sugar and appropriate amount of water into the pot and start stewing;
After the fire boils, turn to low heat and cook for 5 minutes, then turn off the fire. Let it cool and you can eat it.