1.Preheat barbecue with lid closed over medium heat. For the spice rub, place all the ingredients in a container and shake to combine. Extra spice mix will keep for up to 6 months in a sealed container.
2.Brush the chicken with the olive oil then rub over 2 tbs of the spice rub. Place chicken and corn on the barbecue and cook for 15-20 minutes, turning, until chicken is cooked through and corn is slightly blistered. Remove from barbecue.
3.Drizzle chicken with a little chilli oil and serve with corn, lime and cos lettuce.