Salt & pepper prawns

INGREDIENTS

• 2 tbsp cornflour
• vegetable oil , for deep frying
• 24 large king prawns , peeled and deveined, with tails
• pea shoots or baby salad leaves, to serve (optional)
• 1 tbsp Sichuan peppercorns
• 4 black peppercorns
• 2 tbsp sea salt flakes
• large pinch of chilli flakes
• 1 garlic clove , crushed
• 1 tbsp chopped coriander leaves
• 1 small red chilli , finely chopped
• 2 tbsp caster sugar
• juice 3 limes
• 1 tbsp fish sauce