Mix together flours, sugar, and coloring in water until dissolved. Peel and slice bananas. Grease a baking pan, and ladle in about 4 tbs of ‘batter’ then arrange a layer of bananas. Steam for about 5 mins and add more batter to cover the bananas. Steam again until the batter is clear. Cool and cut into small pieces.
Serve with coconut sauce and toasted sesame seeds. Makes about 2 cakes, each cake is about 1/2 inch thick (cakes shouldn’t be too thick), learn How to make coconut sauce?
I recommend you should try Banana Bread Pudding cake, learn How to make Banana Bread Pudding cake?