In a mixing bowl mix eggs, flour, baking powder, sugar and salt. Pour in the milk half at a time stirring well. Stir the vanilla, melted butter and ¼ teaspoon of nutmeg into the batter. Let the batter sit for at least 30 minutes or overnight.
Preheat the oven to 425°.
Fry three stripes of bacon in a 12" cast iron skillet or any other oven safe skillet. Remove the bacon to drain and chop into small pieces. After cooling for a few minutes wipe the skillet clean with paper towels.
In a small bowl combine white sugar, brown sugar cinnamon and nutmeg. Melt ¼ cup of butter in the bottom of the skillet and add half of the sugar mixture. Add the apple slices and sprinkle the remaining sugar mixture over the apples. Cook on medium high heat for a minute or too or until it becomes bubbly.
Carefully pour the batter over the apples. Bake in a preheated oven for 15 minutes. Reduce heat to 375° and cook for another 10 minutes. Let cool for 5 minutes before serving.
