Add rice to blender and pulse several times. Add about 1 1/2 cups of water, blending to break up the rice, then add another 2 1/2 cups and blend again. Four cups of water, total, are in the blender at this point.
Lay cinnamon on a protected surface and break up with a heavy object into small chunks. Add to the rice mixture. Either pour into another container or simply set the blender cup in the fridge. Leave for about 12 hours.
After the resting period, remove the cinnamon then blend again, then begin the straining process. Reserve the solid bits for the rice pudding. The easiest way I’ve found to strain is to use a three-step straining process, primarily because I don’t like to waste cheesecloth, nor do I have the patience to scrape and facilitate straining once the cheesecloth becomes coated with the mixture.
Add sugar and salt to milk in a small, microwave-safe container like a Pyrex measuring cup – heat for a moment, then stir to dissolve sugar. Add to the Horchata. Refrigerate the Horchata for another hour or so, then pour over a generous amount of ice and enjoy.
Notes:
Variations: