Place the uncooked basmati rice along with the cinnamon stick and water in a glass container and let it sit over night.
The next day, pour the rice, cinnamon stick, water in a blender, add in the rice syrup (more to taste) and blend for a few minutes until no big pieces are left.
Pour the mixture through a strainer and place it in the fridge for a few hours.
When you serve the Horchata, pour it in a glass, add ice cubes & dash of cinnamon!