Pre-heat your oven to 350 degrees.

Whisk together the melted butter, the eggs, and the vanilla extract.

Stir in the flour, sugar, and baking soda.

Carefully fold in the mashed bananas.

In to a greased loaf pan, pour approximately 1/4 of this batter then cover with a 1/4 cup of Nutella.

Next, more batter, more Nutella - swirling as you go!

Then again...until all of your batter and all of your Nutella is gone.

Bake for approximately 60-75 minutes.

Serve warm!