Preheat oven to 350°F (175°C). Prepare a 9-inch springform pan with parchment paper or non-stick spray.
In a medium bowl, stir together vanilla wafer crumbs and melted butter until well combined. Press mixture into the bottom of prepared pan, using a flat-bottomed glass to press down and smooth out the crust. Bake for 10 minutes, then remove from oven and let cool while preparing the filling.
In a large bowl or stand mixer, beat the Norman's Kosher Cholov Yisroel Cream Cheese, mashed sweet potato, and granulated sugar together until smooth and creamy. Add the eggs one at a time, beating well after each addition. Mix in the ground nutmeg, vanilla extract, and kosher salt.
Pour the filling over the cooled crust, using a spatula to smooth the top. Bake for 40-45 minutes, or until the edges are set and the center is slightly jiggly. Let cool to room temperature, then chill in the refrigerator for at least 2 hours.
When ready to serve, make the salted caramel by heating the caramel sauce in a small saucepan over low heat until warmed through. Stir in the flaky sea salt. Drizzle the caramel sauce over the cheesecake and serve.