It didn't seem to be difficult to make it.
First, we put two oranges and water into a pot, and boil them for 30 minutes.
After that we drain the hot water, and we do the same thing twice.
After that, we slice them into rings.
And major the weight.
We add 60 or 70% of sugar of the weight to the pot.
And we simmer them without water for 30 minutes.
The taste is good, but how awkward I am!