Nguyn liu | Ingredients: 1 ci bnh t, ct lt 2cm | 1 Nian Gao, sliced into 2-cm thick pieces1 c khoai lang (~350gr) ct lt 2cm | 1 sweet potato (~350g), sliced into 2-cm thick pieces1 c khoai mn (~320gr) ct lt 2cm | 1 taro (~350g), sliced into 2-cm thick pieces80gr bt m | 80g flour100ml nc | 100ml water