01 - 
                Gather all ingredients and preheat the oven to 350°F.
              
              
              
                02 - 
                Toss apple slices with lemon juice to prevent browning. Incorporate sugar, cornstarch, and apple pie spice, ensuring apples are evenly coated.
              
              
              
                03 - 
                Roll out the tart dough and place it into a tart pan, trimming any excess edges.
              
              
              
                04 - 
                Arrange the spiced apple filling evenly in the crust and pour any leftover juice into the pan.
              
              
              
                05 - 
                Bake the tart for 45 minutes, or until the filling is bubbly and the apples are tender.
              
              
              
                06 - 
                Remove the tart from the oven and allow it to cool on a wire rack.
              
              
              
                07 - 
                In a saucepan, simmer sugar, water, and salt over medium heat, stirring until sugar dissolves. Once boiling, stop stirring and reduce heat to medium-low.
              
              
              
                08 - 
                Allow the caramel to boil undisturbed for 5 minutes until it turns a golden brown color.
              
              
              
                09 - 
                Remove from heat and stir in heavy cream and unsalted butter until smooth.
              
              
              
                10 - 
                Drizzle the caramel sauce over the cooled apple tart before serving.