Bring the water and milk to the boil with salt and, if desired, nutmeg. Add the semolina and stir on the stove until the mixture turns into a large lump that separates from the pan. Take the pot off the stove and let the porridge cool slightly. Add the egg and stir vigorously until smooth.
Bring water to a boil in a saucepan. Shape the quenelles in your hand: to do this, the right-hander has to spread water or butter into the left hand so that the mass does not stick. The Quenelles nature are small, approx. 5 cm long and 1.5 cm thick. They are put in the boiling water and once they float on the surface, they are cooked through.
The quenelles are suitable both as a soup and as an accompaniment to ragouts. Also very good as a vegetarian main course, gratinated with cheese.