In an iron pot or casserole, put the sugar into a small fire and stir slowly until it turns into syrup. The syrup will harden when it is cooled. Contrary to sugar-coated berries, they must be heated continuously on a small fire to stay liquid.

Extended data

Syrup is a viscous solution containing high concentration of sugar, which is made by boiling or other techniques. The raw materials for making syrup can be sugar water, sugarcane juice, fruit juice or other plant juice. Because of the high sugar content of syrup, it can be stored for a long time without refrigeration in a sealed state. Syrup can be used to make drinks or sweets. ?

Fruit syrup made at home is usually mashed fruit, boiled in water, filtered pulp, added with sugar, then boiled until the solution is viscous, cooled and stored in a bottle.

References:

Baidu encyclopedia-sugar