Step by step
Pour the banana puree into the food mixer together with the softened butter, mix, and then add the two types of sugar, continuing to mix for a few minutes until you get a smooth consistency
Tips
If you want to make your banana and Nutella bread even more yummy, add either walnuts or hazelnuts which will provide an extra bit of texture.
Trivia
Banana and Nutella bread is a sponge cake whose origin is clearly to be found in Anglo-Saxon countries, especially the United States and Australia.