Preheat oven to 160°C (320°F) and grease a springform pan.
Mix almond flour, melted butter, and sweetener, then press into the pan for the crust.
Bake crust for 10 minutes and let it cool.
Beat cream cheese and sweetener until smooth.
Add eggs one at a time, mixing gently.
Stir in vanilla extract and heavy cream until creamy.
Pour filling over the crust and smooth the top.
Bake for 40 minutes, then let it cool completely.
Drizzle caramel sauce on top, sprinkle sea salt, and refrigerate for at least 4 hours before serving.