Crispy Deep Fried Niangao with Sweet potato and Yam 酥脆番薯芋头炸年糕

Sandwich Nian gao or Chinese steamed sticky rice cake with sweet potato and yam then deep dry is one of the most popular snack during or after CNY in old days. When i was young, my mother always prepared this snack for us. My mother only used the simple plain flour batter. But this time i am sharing this recipe using many type of flours to create a crispy crust of Nian Gao. I tried this recipe as it just happened that i have all these flours on hand.