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

In another bowl, combine milk, egg, melted butter, and vanilla extract. Whisk until smooth.

Pour wet ingredients into dry ingredients and fold gently. Let batter rest for 5-10 minutes.

Preheat a non-stick pan over medium heat and lightly grease it.

Scoop about ¼ cup of batter onto the pan and cook for 2-3 minutes until bubbles form.

Flip the pancake and cook for an additional 1-2 minutes until golden brown.

Transfer pancakes to a warm plate and repeat with remaining batter. Serve with your favorite toppings.