01 -
Preheat the oven to 350°F and grease a loaf pan thoroughly.
02 -
In a large bowl, mash ripe bananas until creamy, then whisk in melted butter, brown sugar, beaten egg, vanilla extract, and milk or brewed coffee until smooth.
03 -
In a separate bowl, sift together flour, unsweetened cocoa powder, baking soda, salt, and instant espresso powder.
04 -
Gradually fold the dry mixture into the wet ingredients, stirring just until combined to avoid overmixing.
05 -
Gently fold in the dark chocolate chips until evenly distributed.
06 -
Pour the batter into the prepared loaf pan and arrange banana slices on top for garnish.
07 -
Bake for 55 to 60 minutes, or until a toothpick inserted into the center comes out clean.
08 -
Allow the bread to cool in the pan for 10 minutes before transferring to a wire rack to cool completely. Slice and serve warm or at room temperature.