Heat a pot on medium and mix 4 1/4 cup water with sugar and pandan leaves (if using) until the sugar dissolves to make sugar syrup. Take it off the heat.
Chop the pennywort leaves for easy blending, then mix them up with the remaining water in a blender.
Strain the blended pennywort mixture into a bowl.
Pour the strained juice into the sugar water, stir well, and let it cool. Enjoy it over ice or chilled from the fridge.
Notes
Use the nutrition card in this recipe as a guideline.
You can make variations with sparkling water, lemon juice, ginger, mint, and even fruit smoothies.
Pandan (optional) - You can add pandan for extra flavor and fragrance.