Preheat oven to 350°F.
In a saucepan, add the apples, cinnamon, ¼ c brown sugar, salt and water.
Cook apples over medium heat for about 10 minutes, stirring occasionally, or until apples are tender. Remove from heat and stir in 1 cup of the caramel. (Save the remaining caramel for serving.)
In a mixing bowl, whisk together the flour, sugar, baking powder and milk; set aside.
Pour melted butter into the bottom of a 9x13 baking dish.
Pour the batter over the butter; do not stir.
Spoon the apple mixture over the batter; again, do not stir.
Bake for 30-40 minutes. The batter will rise to the top and the apples will be on the bottom in a delicious sauce. Serve warm with vanilla ice cream and remaining caramel sauce.