Boil the chickpeas and mash them thoroughly.
Mash the banana, then mix it with the chickpeas.
Add cocoa powder, oatmeal, agave syrup, and salt. Mix well.
Finely chop the nuts and add them to the batter.
Line the pan with parchment paper and spread the batter evenly.
Bake in the oven at 180°C for 20-25 minutes.
Let cool and cut into easy-to-eat sizes.