E.B.
I believe you are referring to "farofa".
See these links:
https://atasteofbrazil.wordpress.com/2013/09/23/farofa/
http://honestcooking.com/picanha-101-brazilian-barbecue-m...
(On the second link, go down to the last photo where you'll see the meat being dipped in the farofa).
You'll have to order the proper tapioca starch but the first link tells you where to find it online, unless you have an awesome international grocer near you.