Preheat the waffle iron. In a large bowl add the flour, baking powder, sugar and salt. Mix well together.
In another bowl add the well beaten eggs, melted butter, vanilla extract and milk.
Add the liquid ingredients to the dry ingredients and gently whisk together well.
Spoon ½ cup in the center of the hot waffle iron, or amount recommended by manufacturer. Spread the batter ¼ away from the edge of the iron. Close the lid and cook until the waffle is nice and golden brown. Serve with sprinkled powder sugar.