Preheat oven to 350°F (175°C) and grease or line a 9×9-inch baking dish with parchment paper.
In a food processor, blend cottage cheese, melted chocolate, butter, sugar, egg, milk, vanilla extract, and cocoa powder until smooth.
In a separate bowl, whisk together whole wheat flour, baking soda, and salt.
Pour the wet mixture into the dry ingredients and stir until just combined. Do not overmix.
Fold in the chocolate chips, ensuring even distribution throughout the batter.
Transfer batter to the prepared baking dish and spread evenly.
Bake for 20-25 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Allow to cool completely before slicing into 16 squares.