Preheat your waffle iron to medium-high heat to ensure it’s ready when you complete the batter.
In a large bowl, mix flour, baking powder, and salt.
Add the milk, egg yolks, melted butter, sugar, and vanilla extract to the dry ingredients and stir until combined.
In another bowl, beat egg whites until they form stiff peaks.
This is the secret to light and fluffy waffles that Joanna swears by!
Gently fold the beaten egg whites into the batter.
You want to keep that airy texture intact, so take it slow and steady.
Pour the batter onto the preheated waffle iron.
Cook until golden brown and crisp.
Serve your waffles warm with your favorite toppings.