Preheat your oven to 350°F (175°C). This ensures your Avocado Brownies bake evenly, creating that perfect fudgy texture.
Line an 8x8 inch baking pan with parchment paper, allowing some overhang for easy removal of the brownies later. Lightly grease the paper to prevent sticking.
In a blender or food processor, combine the black beans, mashed avocado, coconut oil (or almond butter), maple syrup (or honey), and vanilla extract. Blend until smooth and creamy.
In a large mixing bowl, whisk together the rolled oats (or almond flour), unsweetened cocoa powder, Dutch cocoa powder, baking powder, and salt. Gradually add the blended mixture to the dry ingredients and stir until fully combined.
Fold in the mini chocolate chips, ensuring they are evenly distributed throughout the batter.
Pour the brownie batter into the prepared baking pan, smoothing the top with a spatula. Bake in the preheated oven for 25-30 minutes or until a toothpick inserted into the center comes out with a few moist crumbs.
Allow the brownies to cool in the pan for about 10 minutes before lifting them out using the parchment paper. Let them cool completely on a wire rack before cutting into squares.