In a mixing bowl, whisk together the flour, sugar, baking powder, and salt.

In another bowl, whisk together the milk, egg, melted butter, and vanilla extract.

Gently fold the wet ingredients into the dry mixture until just combined.

Heat a griddle or frying pan over medium heat and lightly grease it.

Using a measuring cup, pour about 1/4 cup of batter for each pancake onto the griddle.

Cook the pancakes for 2-3 minutes or until bubbles form on the surface.

Carefully flip the pancakes and cook for another 1-2 minutes until golden brown.

Remove the pancakes from the griddle and serve warm with your favorite toppings.