Here are the ingredients, the rum is optional, but I like the flavor.

Banana crush with a fork into a puree. If you use rum, then add to banana rum.

Butter, brought to room temperature (can microwave for literally 5 seconds to warm up to speed), grind with sugar.

Stir well the butter with the sugar so that the mass was white and airy.

Add the eggs, stir well.

Add bananas. Mix well.

Pour the flour mixed with baking powder, stir gently. Pour the batter into a form (I use rectangular high), shake a little bit to air out. Cook 30-40 minutes at a temperature of 170 ° C. from 30 minutes you can already check whether the biscuit. To the sponge cake evenly and beautifully got up, you can pull the dough after 7 minutes after the start of cooking and a little cut with a wet knife.

Very aromatic cake turns out!