Preheat the oven to 375°F (190°C) and place butter in an 8×8 inch baking dish to melt while the oven heats.
In a bowl, whisk together eggs, milk, cottage cheese, sugar, and vanilla extract until combined.
In a separate bowl, mix the flour, salt, and baking powder thoroughly.
Combine wet and dry ingredients gently until smooth, taking care not to overmix.
Remove the hot baking dish from the oven carefully, pour in the batter, and return to the oven.
Bake for 25 to 30 minutes, or until the pancakes are puffed and golden brown.
Slice into squares and serve warm with optional toppings like fresh berries, maple syrup, or powdered sugar.