Heat a skillet to medium heat. Spread one side of the bread with peanut butter, and the other with Nutella. Add slices of banana and close the sandwich. Butter one side of the bread and place on the heated skillet. Spread a layer of butter on the other side while the sandwich is cooking. Cook until lightly golden and flip to the other side. Cook again until golden and remove from heat. Let cool for a moment so as to not burn your mouth, and then enjoy!.
