cook rice: ½ cup rice to 1 cup water. (I use a rice cooker on the brown rice setting). Add more water if it evaporates and the rice is not yet soft.
I buy my black rice in the bulk section of my Whole Foods or Wheatsville Coop. If you can't find black rice, sub in quinoa (you can even get black quinoa if you're going for color).
Regular oranges can be substituted for blood oranges.