Separate the eggs, placing the yolks together in a large basin and the whites in a second smaller basin. Add the water, a seasoning of salt and pepper and the cheese to the yolks. Using a wooden spoon, stir the egg yolk mixture until blended and creamy. Stiffly beat the egg whites and, using a metal spoon, fold them into the egg yolk mixture.
Melt the butter in a frying pan. When frothi