Whisk the flour, baking powder, sugar, and salt together in a mixing bowl.

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

Pour the wet ingredients into the dry ingredients.

Stir gently until just combined. A few small lumps are fine.

Let the batter rest for about 5 minutes.

Heat a lightly greased nonstick skillet or griddle over medium heat.

Scoop the batter onto the skillet.

Cook until bubbles appear on the surface and the edges look set.

Flip and cook the second side until golden.

Serve warm with maple syrup, butter, berries, or your favorite toppings.