Leave the cream cheese at room temperature to soften.
Add erythritol to the cream cheese and mix with a whisk.
Add the eggs one at a time, mixing well after each addition.
Pour in the heavy cream and vanilla extract, and mix until smooth.
Sift in the cake flour and mix until well combined.
Line a round mold with parchment paper and pour in the batter.
Bake in a preheated oven at 200°C for 30-35 minutes.
Let it cool completely and refrigerate for at least 3 hours to set.