Teff is not gluten free as your title implies. So please be careful if you try it at a restaurant! The few places that use teff mix it with wheat.
I have tried virtually all the injera in seattle, and the vast majority is cut with barley or corn due to the high cost of teff grain.
You'll have to fly to d.c. If you have a support to your claim pls do let me know Making injera is an art.at fassica.com we make 100% authentic teff injera (gluten free) using traditional injera making process. It’s called teff and it’s a staple of ethiopian cuisine.