This White Sugar Sponge Cake / Chinese Honeycomb Cake / Banh Bo Nguoi Hoa recipe makes scrumptious snack cakes just like the ones in the Chinatown bakeries. I've loved White Sugar Sponge Cake as a child and whenever we went to our local Chinatown, I would beg my Mom to buy this treat for me. White Sugar Sponge Cake is sweet with a slight tang, pillowy soft and wonderfully spongy from the vertical striations, also called honeycombs, throughout the cake. How do you make this magical cake? You'll be happy to know, it's pretty easy! The recipe is straightforward with just 4 ingredients: rice flour, yeast, sugar and water. Watch the video below for the easy steps and then make some to enjoy! :)