Measure out 1/3 cup of drippings. Set remainder aside - you WILL use them.
To the 1/3 cup of drippings, add the sweet rice flour, whisking as you add to avoid lumps. Add mixture back to original drippings, whisking as you go, and heat on stove top.
If there's not enough gravy, add water as needed.
Notes
Substitutions
Gluten: Gluten is a protein found in specific grains (wheat, spelt, kamut, barley, rye). Other grains are naturally gluten-free but may have cross-contact with gluten-containing grains. Look for certified gluten-free products if you need to avoid gluten. Find out more about wheat and gluten substitutions.