Mix the sweetener, softened butter and vanilla until smooth.
While the base is cooking, place the cream cheese, eggs, vanilla, sweetener and cinnamon into a bowl and blend until smooth and lump free.
TOP TIP :: The majority of the carbs come from the chocolate ganache. To reduce the carbs, you can use less ganache (this recipe makes a LOT) and/or use higher cacao chocolate. My calculations were using 85% cacao chocolate.