Preheat the oven to 375 degrees Fahrenheit (190 degrees Celsius) and line a standard 12-cup muffin tin with paper liners.
In a large mixing bowl, sift together the all-purpose flour, granulated sugar, baking powder, baking soda, and salt.
In a separate medium bowl, whisk the cottage cheese, eggs, melted butter, and vanilla extract until the mixture is homogenous.
Create a well in the center of the dry ingredients and pour in the wet mixture.
Using a silicone spatula, fold the ingredients together until just moistened, ensuring no pockets of dry flour remain while avoiding over-agitation of the gluten.
Gently fold the blueberries into the batter until evenly distributed.
Portion the batter equally into the prepared muffin tin using a 1/4 cup scoop.
Bake for 22 to 25 minutes, or until the internal temperature reaches 200 degrees Fahrenheit and a cake tester inserted into the center comes out clean.
Remove from the oven and allow the muffins to rest in the tin for 5 minutes before transferring to a wire rack for final cooling.