Step 1 Preheat grill to medium heat (about 350°F/180°C).
Step 2 For each egg, create a small round tray or boat with aluminum foil. To do this, fold a piece of foil (about 5 x 12 inches/13 x 30 cm) in half. Shape the double thickness of foil into a round tray, about 4 inches (10 cm) in diameter, by curving up edge to form a lip, then folding over as necessary.
Step 3 Brush the bottoms of the trays with oil or coat with cooking spray. Place the trays on the grill. Crack an egg into each tray.
Step 4 Close the lid and cook for a couple minutes until egg whites start to set. For a soft yolk, open the lid and continue cooking for 2 to 3 minutes until eggs are cooked as desired. For a firm yolk, finish cooking with the lid closed.