Add sour cream to a medium bowl and beat with an electric mixer until whipped (2-3 minutes). Set aside.
2
Add cream cheese and grass-fed butter to a medium bowl and beat with an electric mixer until fully creamed. Add vanilla extract, lemon juice (add a light squeeze to taste), Swerve, heavy cream and beat until just combined.
3
Fold in whipped sour cream. Pipe or spoon cheesecake mixture into the glass. Freeze for 30-40 minutes or refrigerate for a couple hours (or overnight).