In a heavy-bottomed saucepan, combine the dark brown sugar, water, and pandan leaves. Using a wooden spoon or spatula, mix until well combined.Feel free to reduce the amount of water for treats like Taho for a thicker, more caramelized consistency.
Place the saucepan over medium-high heat. Allow the mixture to boil for approximately 15 minutes while stirring intermittently. The syrup should reduce slightly in volume.
Pick out the pandan leaves from the mixture.
Stir in the vanilla extract. Turn off the heat and let the syrup slightly cool.
You can use the syrup once it cools down or transfer it into a heat-resistant container. If necessary, strain the syrup through a strainer to remove any leaf fragments. Store it in the refrigerator for up to 2 weeks.
Notes
Yield: about 2 cupsDark brown sugar: Because of its higher molasses content, it has a rich, caramel-like flavor. Light brown sugar can be a suitable alternative.Pandan leaves: Also called screwpine leaves, these fragrant leaves impart a subtle, grassy aroma with a hint of nuttiness. While they don't contribute a discernible taste, their aroma can significantly enhance the flavor experience. Consider pairing them with vanilla or banana extract for a richer aromatic profile.