1. Preheat the oven to 180°C (350°F). Line a loaf tin* (23x12cm) with baking parchment and grease lightly. Mash the bananas and chop the chocolate and cashews roughly. Set aside.

2. Add the brown sugar, Greek yogurt, butter, and vanilla extract to a large bowl and mix until well combined. Next, add the eggs one after another and mix well after each addition. Combine flour, baking soda, and salt. Add the dry ingredients to the bowl and mix until just combined. Add the mashed bananas and fold in. Finally, add all the chopped chocolate and about 2/3 of the chopped cashews and fold in.

3. Transfer the batter to the prepared loaf tin and smooth out the top. If you want to add an additional banana for decorations, cut it in half lengthwise and place it (cut sides up) on the batter (optional). Sprinkle everything with the remaining chopped cashews and bake the banana bread for about 60-70 minutes, or until a wooden skewer inserted into the center comes out clean. Take out of the oven and let cool down for some time inside the loaf tin, then remove and let cool down completely on a wire rack.