Preheat your oven to 350°F (175°C).
Drain and rinse the can of black beans thoroughly.
In a food processor, combine the black beans, salt, nut butter, and maple syrup. Blend until smooth.
Transfer the mixture to a mixing bowl. Add cocoa powder and oat flour (or almond flour) and stir until combined.
Fold in the chocolate chips gently.
Spread the mixture in the prepared baking dish. Bake for 20-25 minutes.
Let the bars cool in the baking dish for about 10 minutes, then transfer to a wire rack to cool completely.
