While a friend and I were shopping, she suddenly had a "craving" for Bánh Khoai Mì Nướng which is a simple and delicious cake made from fresh cassava root. So the very next day, I went and bought 4 bags of grated cassava root. I used 2 bags to make one cake to satisfy her "craving". The other 2 bags I planned to have her take home and try it out on her own. But as soon as the cake hits the table, it was gone. A few other friends were interested in learning how to make it as well so we used...