Preheat the oven to 356°F.

Get everything ready and weigh out all the ingredients.

Sift the self-raising flour into a large bowl.

Place the butter in the microwave for 1 minute until melted.

Beat the eggs. Then add the butter, eggs, sugar, and vanilla extract to the self-raising flour in one large bowl.

Mash the bananas and add them to the rest in the bowl. Mix everything well together.

Finely chop the dark chocolate and mix it through the batter.

Grease a baking tin with butter.

Pour the batter into the baking tin and bake in the oven for 75 minutes.

Let the banana bread cook for another 5 minutes with the oven door open. Serve cold. Enjoy!