Prepare the apples in the skillet

• Place the butter and chopped apple in a 10-inch cast iron skillet.
• Sprinkle the apple with cinnamon.

Preheat the oven with the skillet

• Put the skillet in the cold oven and preheat to 220 °C (425 °F).

Blend the batter

• Place the eggs, milk, flour, vanilla and salt in a blender.
• Blend until smooth.

Bake the Dutch baby

• Pour the batter evenly over the apples in the hot preheated skillet.
• Bake for 20 minutes, until golden brown and puffy.

Serve

• Serve with maple syrup and powdered sugar.