The winter melon slices are then placed in boiling water with brown sugar or caramel and stirred for several hours.

The mixture is filtered with a gauze or sieve to remove any undissolved sediment, leaving concentrated winter melon juice that can be cooled, stored or refrigerated before drinking.

After the reduced juice is poured into a pan and left to cool, the solid is commonly cut into cubes and sold.

A sugar-free version of the winter melon punch is made for people with kidney issues and diabetes.

Street vendors may also add tapioca balls, nata de coco, or tangyuan to winter melon punch and sell it as a dessert.