Air fryer prawns with green chilli sauce

Ingredients

• 24 large uncooked prawns
• 1/3 cup finely chopped coriander roots, stems and leaves
• 3 cloves garlic, crushed
• ¼ teaspoon ground white pepper
• 1 teaspoon ground Sichuan pepper
• 3 green onions, chopped finely
• 1 tablespoon brown sugar
• 1 tablespoon fish sauce
• olive oil cooking spray
• to serve: coriander sprigs
• GREEN CHILLI SAUCE
• 1 long green chilli, seeded, chopped coarsely
• 2 cloves garlic, chopped
• 2 tablespoons chopped coriander roots and stems
• 2 tablespoons lime juice
• 2 teaspoons brown sugar
• 2 teaspoons fish sauce
• 2 teaspoons peanut oil