SOAK the skewers in boiling water for 20-30 minutes. Combine the Vegemite with the garlic, ginger, oils, coriander and chilli sauce to form a marinade.

THREAD each prawn along the length of a bamboo skewer. Brush well with the marinade and refrigerate for 30-45 minutes.

BARBECUE the prawns over a medium heat for 5-6 minutes, turning occasionally, until cooked through. Serve immediately with barbecued vegetables.