Preheat your oven to 350°F . Line a muffin tin with paper liners or grease it lightly.
In a large bowl, whisk together the cottage cheese, melted butter, granulated sugar, eggs, and vanilla extract until smooth and well combined.
In a separate bowl, whisk together the flour, baking powder, baking soda, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
Fold in the chocolate chips gently until they are evenly distributed throughout the batter.
Spoon the batter into the prepared muffin cups, filling each about 2/3 full.
Bake in the preheated oven for 18-20 minutes, or until a toothpick inserted into the center of a muffin comes out clean or with just a few crumbs attached.
Allow the muffins to cool in the tin for about 5 minutes before transferring them to a wire rack to cool completely.