Grease and butter a large loaf cake pan with a capacity of 8 cups.

Preheat the oven to 180°C/350°F.

Place a rack in the center of the oven.

Mix together the milk and lemon juice and set aside.

In a bowl, mix together the flour, baking soda and baking powder. Set aside.

Using an electric mixer, beat the butter in a bowl on medium speed until it becomes creamy.

Add the sugar and mashed bananas and beat for 20 seconds.

Add the eggs one at a time, and beat for 1 minute. Add the milk and beat for 20 seconds.

Sift the flour mixture over the cake batter. Scrape down the edges of the bowl and stir well to fully incorporate the batter.

Pour half the cake batter into the cake tin. Distribute the banana slices equally on top. Spread the Nutella equally over the banana slices.

Pour the rest of the batter evenly over the banana slices.

Bake for 50 to 55 minutes or until you insert a knife in the center of the cake and it comes out clean.

Remove from the oven and set aside to cool down. Invert onto a flat dish. Dust with powdered sugar if you desire! Enjoy!