1. Beat butter and sugar powder in equal quantity (1 cup each).
2. Beat nicely; it will take some time.
3. Add same quantity maida as butter and sugar powder (1 cup) and a little water while blending with butter sugar mixture.
4. Mix/beat properly without any lumps to a cake consistency.
5. Mash banana in a separate bowl (take a fully ripened green banana)
6. Mix it with the other batter.
7. Add 2 drops of vanilla essence.
8. Add walnuts and cashewnuts, mix again.
9. Finally, add 1 pack full of fruit salt and mix.
10. Drop in a paper cup to cover half or less than half of it; keep in microwave full power for 1 to 1&1/2 minutes.

Image: Flickr/creativecommons gloryfoods