01 - In a medium saucepan, whisk together the whole milk, heavy cream, and half of the granulated sugar. Heat over medium heat until steaming without boiling.
02 - In a mixing bowl, whisk egg yolks, remaining sugar, cornstarch, and fine sea salt until smooth and pale.
03 - Gradually add about one-third of the hot milk mixture to the egg mixture, whisking constantly to prevent curdling.
04 - Pour the tempered egg mixture back into the saucepan with the remaining milk mixture.
05 - Cook over medium heat, whisking constantly, until the mixture thickens and begins to bubble, approximately 2 to 3 minutes.
06 - Remove from heat. Whisk in the softened cream cheese and pure vanilla extract until fully smooth and blended.
07 - Transfer the mixture to a clean bowl. Cover with plastic wrap pressed directly on the surface to avoid skin formation. Refrigerate for at least 2 hours until fully chilled and set. Stir before use.