Set up for dredging: Combine flour, salt and white pepper in a shallow dish. Add egg whites to a second shallow dish. Combine breadcrumbs, coconut, lime zest and salt in a third shallow dish.
Dredge prawn first in the flour mixture, then in the egg mixture, then place the shrimp in the breadcrumb mixture and press the crumbs firmly on all sides.
Select Air Fry on the Vortex and adjust the temperature to 200°C and the time to 12 minutes. Touch Start and allow the Vortex to preheat.
When the display indicates “Add Food” place the coated prawns onto the cooking trays, leaving space between each piece.
When the display indicates to turn food, flip each of the prawns over, then continue to Air Fry program.
When the program is complete, remove the prawns and serve with sweet chilli dipping sauce.