If you cannot find Banh Lot, look for fresh or frozen Cendol noodles in Asian markets. They are similar in texture and flavor. Gula Jawa (Indonesian palm sugar) provides a distinct caramel note; if unavailable, dark brown sugar or muscovado sugar can be used, though the flavor will be slightly less complex.
This dessert is best served fresh. The noodles can become mushy if left in the liquid for too long. You can prepare the coconut sugar syrup ahead of time and store it in the refrigerator for up to a week. Thaw and assemble the noodles just before serving.
Some recipes add a scoop of vanilla ice cream or shaved ice for a colder, creamier texture. You can also garnish with a few crushed peanuts for added crunch.