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

In a separate bowl, whisk together the wet ingredients: milk, egg, melted butter, and vanilla extract.

Pour the wet ingredients into the bowl with the dry ingredients and stir gently until just combined.

Heat a skillet over medium heat and add a small pat of butter to grease the surface.

Pour small amounts of batter onto the skillet to form mini pancakes, about 2-3 inches in diameter. Cook until bubbles form on the surface, then flip and cook until golden brown, approximately 2-3 minutes each side.

Remove from the skillet and serve warm with your favorite toppings.