Salted Caramel Sauce ▢1 cup sugar ▢¼ cup water ▢4 tablespoons butter ▢1 teaspoon vanilla extract ▢¼ cup heavy whipping cream ▢½ teaspoon sea salt Filling ▢3 gala apples ▢3 granny smith apples ▢½ tablespoon ground cinnamon ▢½ tablespoon flour ▢½ cup prepared salted caramel sauce Topping ▢½ cup flour ▢½ cup oatmeal ▢½ cup brown sugar ▢½ cup butter cubed