Bring a large saucepan of water to the boil over high heat. Add corn and boil for about 7 minutes until cooked. Drain and set aside.
Pour the contents of the Knorr Peri-Peri sauce packet into a jug.
Fill up to the 250 ml mark with rapidly boiling water. Stir with a whisk for 1 minute (alternatively use a fork). Allow to cool.
Brush each corn with the Peri-Peri sauce and grill on a griddle pan or over the coals while basting.
Remove from the heat and sprinkle the seeds over the corn. Serve the corn with the extra Knorr Peri-Peri sauce.