Place a dry medium/large iron skillet in the oven and preheat your oven to 425°.
In a mixing bowl, combine eggs, flour milk, sugar and nutmeg. Use a whisk or hand blender to mix batter until smooth.
Remove the preheated skillet from the oven and melt butter in the pan being careful not to burn the butter. Once melted, add the batter to the pan and return it to the oven.
Bake for 20 minutes, the pancake should puff up and get golden browned.
Lower the temperature to 300 and bake for 5 more minutes.
Remove the pancake from the oven and cut into wedges. Serve immediately with toppings of your choice.