Exercise:
Prepare materials
Put 500 grams of water in the pot and bring to a boil. Add brown sugar and rock sugar until it melts.
Keep stirring after the water boils, and don't make the pot bitter. Start simmering slowly with a small fire …
Boil the brown sugar until it is thicker, then turn off the heat and let it cool.
It can be stored in a glass container at room temperature.