Cook the tapioca according to package instructions or refer to the Taho recipe. Set aside.
Cook the gelatin according to package instructions. Set aside.
Place the brown sugar in a cooking pot and caramelize using low heat.
When the sugar starts to melt, put in water and vanilla extract. Let boil and stir until the sugar dissolves. Note: us the lowest heat possible so that the sugar will not burn.
Turn off heat and let cool.
In a glass, combine some tapioca pearls, sliced gelatin, 3 tablespoons of sugar mixture, and a cup of cold water. Stir.