Caramel Apple Pie

Name: Caramel Apple Pie
Prep time: 15 min
Total time: 15 min
Cuisine: American
Ingredients: 3 c. all-purpose flour, plus more for surface; 1 c. (2 sticks) butter, cut into ½" pieces; 2 tbsp. granulated sugar; 1/2 tsp. kosher salt; 1 tbsp. apple cider vinegar; 6 tbsp. ice water (or more, if needed); 3 1/2 lb. assorted apples (Granny Smith, Honeycrisp, Gala) cored, peeled, and thinly sliced (about 7 apples); 1/4 c. packed dark brown sugar; 2 tbsp. freshly squeezed lemon juice; 1 tsp. cornstarch; 1 tsp. cinnamon; 1/2 tsp. pure vanilla extract; 1/4 tsp. kosher salt; 1/2 c. caramel, plus more for serving; 1 egg beaten with 1 tbsp. water (egg wash); Coarse sugar, for sprinkling; Ice cream, for serving