Start by whisking together the flour, sugar, baking powder, and salt in a large bowl.
In a separate bowl, whisk the eggs, milk, melted butter, and vanilla extract. Slowly add the wet mixture to the dry ingredients, stirring until just combined.
The key is not to overmix. A few lumps are fine and will disappear during cooking
Preheat your waffle iron according to the manufacturer’s instructions. Grease it lightly with butter or non-stick spray.
Pour in enough batter to cover the waffle grid (usually about ½ cup for a standard waffle maker).
Close the lid and cook until golden and crisp — this usually takes 3–5 minutes, depending on your waffle iron.
If you’re cooking for a crowd, you’ll want to keep waffles warm while you make more. Place cooked waffles on a wire rack set inside a baking sheet and keep them in a 200°F oven. The rack allows air to circulate so they stay crisp instead of getting soggy.
