Directions

1. Put butter, granular erythritol and walnuts în a food processor. Pulse until all the ingredients stick together to form a dough.
2. Place dough into 4 inch springform pan and put into the air fryer basket.
3. Set the temperature to 200°C, then set the timer for 5 minutes.
4. When timer goes off, remove crust and allow it to cool.
5. Combine cream cheese with vanilla extract, egg, powdered erythritol, espresso powder and cocoa powder until smooth in a medium bowl.
6. Pour mixture on top of baked walnut crust and put into the air fryer basket.
7. Set the temperature for 150°C, then set the timer for 10 minutes.
8. Once fully cooked, allow to chill for 2 hours before serving.