It can be hard to find good horchata, but it's also easy to make it on your own. Try this for the week of Cinco de Mayo.
1c. uncooked white long-grain rice
½ T. vanilla extract
½ T. ground cinnamon
⅔c. white sugar
1. Pour the rice and water into the blender; blend until the rice just begins to break up (about 1 minute). Let rice and water stand at room temperature for a minimum of three hours, if you can leave it overnight that works even better.
2. Strain the rice water into a pitcher and discard the rice. Stir the milk, vanilla, cinnamon, and sugar into the rice water. Chill and stir before serving over rice. Original recipe makes 6 cups.