You can use any nuts you like according to your preference.
Grind the nuts, but not into a complete powder—leave some texture for a chewy bite.
Add the ground nuts and your choice of additional ingredients into a bowl.
Mix in 1 egg and a suitable amount of allulose syrup.
Line a baking tray with parchment paper and spread the mixture thinly and evenly on top.
Preheat the air fryer to 170°C for 15 minutes, then bake at 180°C for 10 minutes. Check occasionally, as cooking times may vary by appliance.
Once cooled, break into bite-sized pieces.