This flour is necessary to make Brazillian Cheese popovers, but is notoriously difficult to find. CM & WF carry the regular tapioca flour (a/k/a sweet flour), but I cannot find the sour variety. Two Brazillian themed speciality shops have closed. Any suggestions?
I don’t have a definitive answer, but if I were you, the first place I’d check would be Fiesta. Their international aisle has all kinds of interesting things that are difficult to find elsewhere. Last time I went there I was intending to buy some Mexican ingredients, but walked out with tamarind chutney and a bottle of piri piri sauce.
Do you know if the sour tapioca flour is also possibly an African or Caribbean product? There is that Afrocarib market at the intersection of I-35 and Rundberg, and there was a West African market on airport near to Wan Fu III but I am not sure if it is there anymore. A quick google might get you some phone numbers so you could call and see if any African shops have it.
You can find it on amazon.com. Just search for sour tapioca flour and depending where you live it is also found in Brazilian markets.
We have removed some unsatisfactory answers to terms and privacy.