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

In another bowl, combine the milk, egg, and melted butter.

Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix; a few lumps are okay.

Heat a skillet over medium heat and lightly grease it with butter or oil.

Pour 1/4 cup of batter onto the skillet for each pancake.

Cook until bubbles form on the surface, then flip and cook until golden brown on the other side.

Serve warm with your favorite toppings such as syrup, fruit, or whipped cream.