If you're using leftover or roasted chicken or turkey, remove about 75% of the meat and reserve this to add to your soup when serving.
In a large stock pot, add the chicken or turkey, 85% of the filtered water, ginger, onion, salt and fish sauce over high heat.
Once it hits a boil, reduce the heat so its at a low to medium simmer.
The water should just about cover all the meat and bones.
If your pot is very wide, keep in mind you may be using more water than listed, and you may need to add less in the final steps later when adjusting for consistency.
Skim off any scum if necessary during the boil.
Keep adding water to the pot as it evaporates so the bones remain covered.
After about 90-120 minutes or when the meat has softened enough to easily be pulled off the bone, remove the poultry and let cool for about 10 minutes.
Using your hands or a fork, remove the rest of the meat from the bones.
Add the meat back into the pot.
Discard the bones, onion, and ginger, since they've given their all to the broth at this point.
Add all the raw rice to the pot and return to the heat on high until it hits a boil.
Then lower the heat to a low-medium simmer until the rice is cooked and hits a soft consistency you like.
It will take about 45-60 minutes depending on your stove.
Once the rice is cooked to the doneness you like, which should be very soft way beyond al dente and beyond how you'd eat it outside of soup, adjust the water level.
Reseason the soup with just salt, just fish sauce or equal parts of both to taste.
Remove from the heat, serve with garnish and enjoy!
