Prepare a 26cm x 20cm baking tray and line with baking paper.
Microwave the dark chocolate for 2 mins or until it melts.
Beat eggs for 2 mins with an electric beater in a mixing bowl. Slowly add sugar and beat for another 3 mins until thick. Sift chickpea flour, cocoa powder and baking powder into the egg mixture.
Add melted chocolate, vanilla extract, chocolate chips and oil.
Puree black beans in a food processor and add fold through the mixture.
Pour batter into the prepared baking tin and bake for 30mins or until a skewer comes out clean.
