In a cold mixing bowl add heavy whipping cream, cream cheese, sweetener and vanilla extract. Mix together and beat on high with a hand mixer mixture thickens, about 5 minutes.
Store in an airtight container in the refrigerator for 3-4 days. This dessert is not 'self stable' so within a day or so a little water will develop around the fluff, nothing is wrong with it and you can still consume and enjoy it. :)