Biscoito de polvilhoCrunchy cassava starch rings
Light enough to float off the plate, these rings are sold by the bagful at bus stations, beaches and football grounds all over Brazil, but they belong to Minas Gerais, where sour cassava starch (polvilho azedo) has been made for centuries. Scalding the starch with hot milk, water and oil and then beating in eggs gives a sticky paste that puffs in a hot oven into crisp, airy, slightly tangy shells. Mineiros eat them with coffee in the afternoon or nibble them all day. Bake them in a hot oven and do not open the door: the rings collapse into flat, hard discs if the heat drops in the first 20 minutes. Chef's tip: the paste should pipe like thick mayonnaise; add a spoon of water if it is too stiff, because a soft dough is what makes the biscuits hollow.


































































































