Wash the mushroom and carefully remove the stoke from the centre.
Drizzle olive oil into the centre and place mushroom upside down on to the barbeque to heat for 2 minutes.
Crack the eggs into the mushroom cups, close the lid of the barbecue and cook for 2 to 3 minutes or until eggs are cooked.
Season and sprinkle with chopped chives. If your barbeque does not have a lid cover the mushrooms with an upside down oven dish or aluminium foil roasting tray.