Prepare the strawberries by soaking them in water with a little vinegar or baking soda to remove any dirt. After soaking, rinse the strawberries in cold water. Pat them dry with paper towels to remove any excess moisture.
Use a knife or melon baller to remove the stems of the berry. Cut any small berries in half and larger ones into quarters. In a large bowl, combine the strawberries with sugar, stirring until each berry is coated.
Transfer the strawberry mixture to a clean airtight jar, and layer with the remaining sugar on top.
Close the lid and refrigerate, stirring occasionally over the next few days to allow the sugar to dissolve and distribute evenly.
After about seven days, your strawberry cheong will be ready to enjoy.
Pass the mixture through a fine sieve, reserving the juice. Store the strawberry cheong in a clean bottle. Transfer the chunks to a clean jar for later use.