To Prep
Combine sweet chilli sauce and chilli garlic sauce in a bowl and set aside.
To Cook
Preheat lightly oiled barbecue grill or chargrill pan over medium-high heat.
Thread prawns onto the skewers. Season with salt.
Cook prawns for 3-4 minutes, turning once. Place on a serving plate and drizzle with the sauce. Garnish with coriander leaves and chilli.