Preheat oven to 400°F.

In a mixing bowl, combine eggs, flour, milk, sugar, and salt.

Mix the ingredients on medium speed for 1 minute until well combined.

Peel and dice the apples.

Fold the diced apples into the batter.

Place butter in a 9x13 inch glass pan and place it in the oven until melted.

Remove the pan from the oven.

Pour the egg and apple mixture into the pan.

In a small bowl, combine sugar and cinnamon.

Sprinkle the cinnamon sugar mixture evenly over the pancake batter.

Bake uncovered until puffed and golden, approximately 25-30 minutes.