This bread was recently discussed in a thread. I found this recipe on Google. "A famous bread from the state of Minas Gerais served at most steak houses in southern Brazil. Unusual in that the recipe calls for manioc starch (available in some Latin groceries) rather than wheat flour. Leavening is from steam during baking, similar to the way eclairs are leavened. These rolls do not hold well and are best consumed while warm, directly from the oven. In Brazil these rolls would be made with Queijo de Minas, a mild, white cheese similar to Muenster in texture - but quite different in taste." They are addictive.