Preheat the oven to 400 degrees.
Whisk together the flour, milk, eggs and salt in a bowl.
Pour batter into a greased 9x13 baking pan.
Pour the melted butter over top of the batter. Do not mix!
Bake for 25 minutes.
Cut into 8 pieces and drizzle with maple syrup or sprinkle with powdered sugar.
