Add the cottage cheese to the bowl of a food processor and blend until smooth, about 2 minutes.
Transfer the whipped cottage cheese to a medium bowl then whisk in the milk, eggs and vanilla extract.
In a large bowl, whisk together the flour, baking powder and sugar with 1/4 teaspoon kosher salt.
Add the cottage cheese mixture to the bowl with the dry ingredients and stir just until combined. (The batter should be lumpy.)
Preheat a nonstick griddle or skillet over medium heat. Grease it with cooking spray. Spoon 1/4 cup portions of the batter onto the griddle. Once bubbles form across the entire surface of the pancakes, flip them once and continue cooking an additional 1 to 2 minutes. Serve immediately or let cool completely and store in an airtight container in the fridge or freezer.