Separate the eggs into yolks and whites.
Add sugar to the egg whites and whisk until stiff peaks form.
Mix the yolks with milk and vanilla extract.
Sift flour into the yolk mixture and combine.
Gently fold the meringue into the yolk batter in 2-3 additions.
Preheat a pan over low heat and coat with butter.
Spoon the batter into the pan, piling it high.
Cover and cook over low heat for 5-6 minutes.
Flip and cook for another 3 minutes until done.