Preheat your oven to 425°F (220°C) with a cast-iron skillet inside for about 10 minutes.

In a blender, combine the eggs, all-purpose flour, milk, melted butter, salt, and black pepper. Blend until smooth and frothy, then let rest for 5 minutes.

Remove the hot skillet from the oven, add 1 tablespoon of butter, and swirl to coat. Pour in the rested batter.

Sprinkle the shredded sharp cheddar and crumbled bacon over the batter.

Bake for 20 to 25 minutes until puffed and golden brown, avoiding opening the oven door.

Let it rest for a minute, garnish with parsley or chives, slice, and serve warm.