1. Take crystal sugar according to the number of dishes. Generally, 2-3 pieces of a dish is enough.

2, from the pot, add a little salad oil, add rock sugar, and constantly stir.

3. Stir-fry all the time to avoid local overheating until it is completely melted and bubbles appear.

4. After bubbles appear, add a bowl of boiling water and continue stirring.

5. Continue stirring until the bubbles become smaller and the color turns reddish brown.