Preheat oven at 350°F.
Peel the bananas and remove any dark spots.
Mash to a chunky consistency.
Cube the butter and melt in the microwave.
Add the melted butter to the mashed bananas.
Mix in sugar, vanilla essence and beaten eggs.
In a separate bowl, combine flour, baking powder, baking soda, and cinnamon powder.
Add to the wet ingredients.
Whisk together until smooth.
Pour into a buttered and floured loaf pan.
Bake for 45 to 55 minutes.