How to make
Turn on the oven and preheat it to 390°F (200°C).
Crack the eggs into a bowl, beat them with a mixer, add the sugar and beat again, until a white mixture is obtained.
Add the vanilla and oil and mix the cake mixture again with a mixer.
Pour the banana-flavored starch. Add the baking powder in the flour and stir to mix them.
Pour it into the mixture and stir with a spoon.
Grease the cake tin and pour the sponge cake mixture in it.
Put the sponge cake with banana starch in the oven to bake, until it's done.
