To make the black sticky rice:
For the Mango Version:
Rinse the Thai black rice and soak overnight in 2 1/4 cups of water. Pour the rice and the water it was soaking in into a rice cooker and add coconut milk and sugar. Stir everything together and turn on the rice cooker. This will likely look pretty grody when raw, but once it’s done, you’ll never look back. Set aside the rice to cool when your rice cooker chirps the signal that it’s done!
To make the mango dessert, combine the condensed milk, milk, and vanilla. Add a big scoop of sticky rice to 2 bowls, and top each bowl with a handful of shaved ice and diced mango. Pour the vanilla sauce over everything and top each bowl with a scoop of vanilla ice cream. You can also layer everything in a glass to make it a bit prettier.