First melt chocolate in a double boiler or in microwave.
In food processor add chickpeas, maple syrup, chickpeas flour, coconut oil, Vanilla extract, pinch of salt, baking powder, 2 tbsp peanut butter and melted chocolate. Mix well till all ingredients combine.
On baking sheet place baking paper and pour over your brownie mixture, on top sprinkle some extra peanut butter.