In a stockpot, combine the backbones, onion, butter, and seasonings.
Add the water, bring to a boil, cover, and cook at a low boil for 40 minutes.
Add the rice to the pot and return to a boil, stirring well. Boil for 10 minutes, then reduce the heat, add green onions, cover the pot, and simmer for 10 minutes or until rice is done.