Soften cream cheese at room temperature, then add sugar and mix well, scraping down the sides.
Beat eggs with vanilla extract and gradually add to the cream cheese mixture in 5-6 additions, whisking each time.
Add cornstarch, then gradually add warmed heavy cream in two additions.
Split the vanilla bean and add the seeds, then strain in the lemon juice and pour into the mold.
Bake in the oven at 220°C for 20 minutes, then open the door and bake for an additional 9 minutes.