St Gabriel Cafe, SE11 4RN
Although its address is on Newington Butts, it's actually in the small row of shops on Cricketers Court between Newington Butts and Kennington Lane (near and behind Brasserie Toulouse Lautrec).
secretlondon visited on a Sunday early evening in February 2018. It was full when I arrived, and I think I was the only non-Ethiopian there. I had a takeaway of awaze tibs (£9 including injeera). It was very good and the injeera was nice and sour. They advertise that they make their own bread, and I saw a bag of what looked like injeera pieces on sale on the counter.
secretlondon's verdict: I'd like to explore this some more and eat in. It looks really interesting.