This is a deep dish breakfast or brunch treat, softer and more dense than a plain Dutch baby, stuffed with buttered apples and layers of custard over caramelized cinnamon sugar. So yummy.... I found the recipe on "The Kitchn" blog.
Heat the oven to 400°F Peel and slice the apples; you should have about 3 cups. Mix the fresh cinnamon, ginger and sugar in a small bowl and set aside.
In the oven, or over a burner, melt the butter in an 8x8" pan or a deep cast iron skillet, tilting to coat the bottom and sides with melted butter. Add the brown sugar to the butter in the bottom of pan. Spread the apples on top of the sugar and sprinkle the cinnamon sugar mixture over the apples. Put the pan back in the oven to start the apples cooking.
Beat the eggs until foamy with a whisk or eggbeater. Fold in the flour, salt, and sugar gradually while mixing. Add milk and vanilla and beat just until smooth. Let rest for a couple minutes.
Take the pan out of the oven and pour the batter over the apples. Sprinkle more cinnamon or cinnamon sugar on top if desired. Bake for about 20 more minutes or until center is set and sides are lightly browned. If the top browns before the center sets, tent with foil for the duration of the baking. The pancake will puff up dramatically but fall after you take it out of the oven. Serve with powdered sugar or more cinnamon sugar.