To use a microwave egg poacher, simply crack an egg into each receptacle, pierce the yolk with a fork and add a teaspoon of water to the egg before microwaving it for 40 seconds to 1 minute. The exact time required depends on the power of the microwave.
The water added to the egg provides steam, which ensures the top of each egg cooks evenly. Butter can be added before placing the eggs into the receptacles to ensure easy removal. A dash of vinegar added to the water may help the egg's membrane remain strong, preventing the final result from being more like scrambled eggs than poached eggs.