Preheat your oven to 450°F (232°C).

In a medium mixing bowl, whisk together the eggs, milk, 2 tablespoons of melted butter, sugar, and salt until well combined. Gradually incorporate the flour, stirring gently until just blended. Avoid overmixing to maintain a light texture.

Add the remaining 1 tablespoon of melted butter to the base of a 9- or 11-inch cast iron skillet. Place the skillet in the oven for a moment to heat, ensuring the butter coats the surface evenly.

Pour the prepared batter into the hot skillet, then bake for 12 to 18 minutes, or until the edges are golden and slightly crisp.

Once baked, remove the skillet from the oven and serve immediately with your preferred toppings.