This recipe retains a taste close to the traditional Injera that is traditionally typically from teff flour that's been fermented for 2-3 days. In 35 minutes or so, you can have injera to pile stews onto and to let dinners tear off pieces to scoop up the stews with their hands. It be made gluten-free by exchanging the all-purpose flour for teff to combine with the rice flour.
In a large bowl, mix yeast and a little warm water. Stir to combine. Add both flours and salt. Stir in most of the warm water with a wooden spoon. Add water as needed to end up with a smooth batter similar to a thick pancake batter. Cover bowl with plastic wrap and let sit on the counter for 1 hour.
After 1 hour, stir the batter and then slowly stir in the boiling water and stir constantly until it becomes a thinner crepe batter, another minute. Let stand uncovered for another 20 minutes before using.
Cook Injera
Lightly grease skillet on medium heat. Pour enough batter in the pan so that batter will look like a thin crepe when swirled to cover the whole bottom of the pan. Cook until air bubbles begin to appear, about 30 seconds. Cover and cook another 1 minute. Remove cover and slide injera onto a plate. Cover with a moist towel and then repeat the process until all the batter is gone.