Prepare the Crust: Preheat oven to 350°F and wrap the bottom of a 9-inch springform pan tightly with aluminum foil. Mix cookie crumbs with melted butter and press into the bottom and 2 inches up the sides of the pan. Bake for 10 minutes and cool.
Lower Oven Temperature: Reduce oven heat to 300°F after the crust is baked.
Make the Filling: Beat cream cheese and sugar in a large bowl until creamy. Add Nutella, vanilla, and salt; mix until smooth.
Add Cream: Slowly pour in heavy cream while mixing on low speed until fully combined.
Incorporate Eggs: Gently stir in eggs with a spatula, ensuring they are just combined.
Prepare for Baking: Pour batter into the cooled crust. Place the pan in a roasting pan and fill the roasting pan with hot water halfway up the cheesecake pan.
Bake the Cheesecake: Bake for 1 hour, then turn off the oven and let the cheesecake sit in the water bath for another hour.
Cool and Chill: Remove cheesecake, loosen the edges with a knife, and cool to room temperature. Refrigerate overnight.
Make the Glaze: Heat heavy cream in a saucepan until it simmers, then stir in Nutella until smooth. Pour over the cheesecake, smoothing it over the top and sides.
Set and Serve: Refrigerate for at least 1 hour until the glaze sets. Slice and enjoy!