You need two microwave safe coffee mugs for this process. Brush the insides of the mug with some butter and crack one egg each in the containers. Cover the openings of the mug with a damp towel. Cook on high power for 2 and a half minutes. If you want to poach 4 eggs you should be breaking eggs in different containers and cooking it for 4 mins. Set them aside for around 30 secs before serving. This will allow the eggs to cook properly.