In a bowl, whisk flour, sugar, baking powder, and salt until evenly combined.
In another bowl, whisk eggs, milk, melted butter, and vanilla until smooth.
Pour wet ingredients into the dry mixture. Stir gently until just combined. Small lumps are fine and help keep pancakes fluffy.
Heat a non-stick pan over medium heat and lightly grease. Pour batter onto the pan and cook until bubbles form on the surface. Flip and cook until golden brown.
