How to make it
6 steps. Take it one step at a time.
Mix the diced water chestnuts
In a small bowl, mix the diced water chestnuts with the red food coloring until evenly coated. Let them sit for about 10-15 minutes to absorb the color.
10 minPlace the tapioca starch
Place the tapioca starch in a large bowl. Toss the colored water chestnuts into the starch, ensuring each piece is thoroughly and thickly coated. Shake off any excess starch using a sieve.
Combine coconut milk, sugar, salt, and knotted pandan leaves
In a saucepan, combine coconut milk, sugar, salt, and knotted pandan leaves. Bring to a gentle simmer over medium heat, stirring until the sugar dissolves. Do not let it boil vigorously. Once fragrant, remove from heat and let cool.
5 minBring a large pot of water
Bring a large pot of water to a boil (100°C/212°F). Drop the coated water chestnuts into the boiling water. Cook until they float to the surface, which indicates they are done. This should take about 2-3 minutes.
3 minUsing a slotted spoon, immediately transfer the floating 'rubies'
Using a slotted spoon, immediately transfer the floating 'rubies' into a bowl of ice-cold water. This stops the cooking process and keeps them chewy.
To serve, place a generous scoop of the red rubies
To serve, place a generous scoop of the red rubies in a bowl. Pour the cooled coconut syrup over them and top with plenty of crushed ice. Serve immediately while the rubies are still chewy and the ice is cold.
A little kitchen wisdom
Using fresh water chestnuts provides the best crunch, but canned ones are a convenient and popular alternative. For the most authentic aroma, use an aromatic candle (Tian Op) to smoke the coconut milk if available.



