Nothing fancy about the ingredient or method because this is super mega easy to made.
Ingredient ~ Calamansi (of course) and Sugar ~ That's it? Yes... that's it. ^ ^ simple right
*Not specifying how many gram/piece to use because all depend on personal preference. Some like it sour (more Calamansi then), some like it sweet (more Sugar then) some like ngam-ngam (taste it lor when you made... haha) and some like it plain (suggest drink plain water ... wakakaka)
Method: Make some syrup water (Sugar + hot water), squeeze juices from Calamansi and combine
Serve cold with ice or chill it in the fridge for few hours and you can 加料 with sour plum.
Perfect for Hot Hot day ... enjoy