In a large bowl, whisk the flour, baking powder, sugar, and salt until combined.

Make a well in the center of the dry ingredients and add in the eggs, milk, melted butter, and vanilla extract. Start in the center and whisk until just combined. A few lumps are okay.

Heat your waffle iron to medium-high heat. Spray with cooking oil if needed.

Add about ¾ cup of batter to your waffle iron and cook until golden brown. Repeat with the remaining batter. Serve with toppings of choice.