Set a large kettle of water to boil, 4 quarts.
In the bowl of an electric mixer fitted with the paddle attachment or beaters, beat the cream cheese and sugar on medium speed until just smooth, about 1 minute. Scrape the bottom and sides of the bowl to be sure the mixture is evenly combined.
40 oz Cream cheese, room temperature, 1 cup Sugar
Gradually add the cream, beating until combined. Beat in the eggs one at a time. Add the lemon zest and juice, vanilla, and salt and beat just until combined, taking care not to overwhip. Pour into the crust.
3 tsp Vanilla extract, 1 tsp Lemon zest from one lemon, 1 tsp lemon juice, fresh from one lemon, 6 ea Eggs, 1/2 cup Heavy cream, 1/2 tsp Salt
Carefully place the roasting pan in the oven (don't pull the rack out of the oven). Pour enough hot water into the roasting pan to come about halfway up the side of the foil-wrapped springform pan.
Bake until the top of the cheesecake is lightly browned around the edges, but the center still jiggles slightly, about 1 hour and 50 minutes.
Turn off the oven and let the cheesecake sit in the water bath until the water is just warm, about 45 minutes.
Remove the springform pan from the water bath and discard the foil. Run a knife around the edges to help prevent cracks from developing as the cheesecake cools. Cover and refrigerate for at least 8 hours and up to overnight.
Bring the cheesecake to room temperature 30 minutes before serving. Remove the springform ring. Dip a knife in warm water and wipe dry before slicing each piece.