In a large mixing bowl, combine the cottage cheese, eggs, and milk. Whisk until well blended.
In another bowl, mix the flour, baking powder, baking soda, salt, and sugar.
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to overmix.
Preheat your waffle iron according to the manufacturer's instructions and lightly grease it with cooking spray or melted butter.
Pour an appropriate amount of batter onto the preheated waffle iron (about 1/2 cup, depending on the size of your iron). Close the lid and cook until golden brown, usually about 5 minutes.
Carefully remove the waffle and repeat with the remaining batter.
Serve warm with your favorite toppings such as syrup, fresh fruit, or yogurt.