1. First, mash the bananas with a fork to reduce them to a puree.
2. Place the banana puree in a large bowl, then add the egg, agave syrup, and milk. Mix well and add the peanut butter.
Finish with the flour, baking powder, and salt. Mix again. Finally, incorporate the chocolate chips.
3. Preheat the oven to 180°C (350°F), line a loaf pan with parchment paper. Pour the batter into the pan, then cut a banana in half lengthwise and place it on top of the banana bread.
4. Bake for 25 to 30 minutes, depending on the oven. Wait for the cake to cool before removing it from the pan. Store in a dry place, protected from open air, for a maximum of 4 days.