In a big mixing bowl, combine the flour, salt, baking powder, and sugar.
Whisk the milk, egg, melted butter, and vanilla extract in another basin.
After adding the liquid components, mix the dry ingredients only until they are barely blended. Avoid overmixing; a few lumps are acceptable.
A nonstick griddle or skillet should be heated to medium. Use butter to grease.
Pour 1/4 cup batter onto the griddle for each pancake. Cook until surface bubbles appear, flip, and continue cooking for an additional 1–2 minutes, or until golden brown.
The pancakes must be removed from the griddle and arranged in a pile on a dish.