Preheat the oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
Place the cottage cheese, eggs, maple syrup, and vanilla extract into a high-speed blender.
Process the mixture until completely smooth and no visible curds remain.
In a large mixing bowl, whisk together the almond flour, cocoa powder, protein powder, baking powder, and salt.
Pour the blended liquid ingredients into the dry mixture and stir until fully incorporated.
Fold in half of the dark chocolate chips into the batter.
Pour the batter into the prepared baking pan and spread evenly with a spatula.
Sprinkle the remaining chocolate chips over the surface of the batter.
Bake for 25 minutes or until the edges are set and a toothpick inserted into the center comes out with only a few moist crumbs.
Allow the brownies to cool completely in the pan for at least 30 minutes to ensure they set properly before slicing into 9 squares.