In a large mixing bowl, whisk together flour, sugar, baking powder, and salt until well combined.

In a separate bowl, whisk together the egg, milk, melted butter, and vanilla extract until smooth.

Combine the wet ingredients into the dry ingredients, stirring gently until just moistened.

Let the batter rest for about 5 minutes.

Preheat the skillet or griddle over medium heat and lightly grease it.

Pour about ¼ cup of batter for each pancake and cook until bubbles form, then flip and cook until golden.

Transfer pancakes to a warm plate and serve with your favorite toppings.