Preheat waffle iron lightly sprayed with cooking spray.
In a large bowl, whisk flour, sugar, baking powder and salt together.
In a small bowl, whisk milk and eggs together.
Add the wet ingredients to the flour mixture. Whisk genntly to combine.
Mix in melted butter.
Pour approx 1/2 to 3/4 cup of batter on your heated waffle iron. Cook approx 2 min.