Preheat oven to 350. Place caramels and milk in saucepan on low till melted. Take cake mix and cut in butter, add milk, add apples. Place half cake mixture into greased 9X13. Bake for 20 minutes. Take out of oven drizzle caramel on this layer. Put other half of cake mixture on top of caramel layer. If adding cinnamon chips you can add this to the caramel layer. Bake for another 20-30 minutes. It is done when toothpick comes out clean.