Add the rice and water to a blender and blend until the rice has been broken up.
Transfer to a glass container along with the cinnamon sticks, cover and soak overnight.
The next day place a fine mesh sieve over a bowl. Pour the rice mixture into the strainer, reserving the rice milk in the bowl.
Discard the rice pieces and cinnamon sticks. Keep the rice milk.
Add all remaining ingredients to the bowl, mix and adjust sweetness to taste.
Serve immediately! Pour over ice and sprinkle ground cinnamon on top.
