It's surprising that the recipe would come out that badly, since I believe the Trib kitchen tests all of its recipes, one of the few papers left in the country to do so. But I also wouldn't think that recipe would end up tasting much like injera, which is typically a sourdough. You could probably wind up with something close using a buttermilk pancake mix.
Here's a recipe from Ras Dashen restaurant. I haven't made it myself, so I can't vouch for how it comes out in a home kitchen.
Injera
Ethiopian sour-dough crepe-like flatbread
Chef Zenesh Beyene
Ras Dashen, Edgewater
Injera is best if served several hours after cooking.
4 cups lukewarm water
1 cup teff flour (available at African markets,
including Abyssinia Market, 5842 N. Broadway St.,
Chicago, 773/271-7133)
2 cups self-rising flour
In a large bowl mix 1 1/2 cups of water with the teff flour. In a blender, mix the self-rising flour with 2 1/2 cups water, and pour the mixture into a second bowl.
Cover both bowls and leave them for two to three days days, until fermentation begins and the water has risen to the top of each mixture. Carefully pour off the water that covers both mixtures.
Combine both mixtures in one bowl, cover and let the mixture (buho) sit for two hours until it rises.
In a larger bowl or blender, thin the buho until it attains the consistency of a pancake batter and seems ready to be poured easily onto a skillet.
Heat a large skillet, pour the buho evenly to form a thin layer. Cook, covered, for 30 seconds or so, until a spongy, crepe-like bread is formed.
Stack each round upon the others and allow to cool.