Grate cheese. Heat the cream and 2/3 of the cheese and simmer over medium heat for 8-10 minutes, stirring occasionally
Clean the spinach, wash thoroughly and drain well. Peel onion and dice very finely. Melt the fat in a pot. Sauté diced onion for about 3 minutes. Add the spinach and let it collapse. Add cheese cream and season to taste with salt, pepper and nutmeg. Simmer spinach for about 3 minutes
Bring 1 litre of water to the boil in a saucepan. Add vinegar. Beat the eggs into one cup each and let them slide one after the other into the boiling water. Cook over low to medium heat for about 5 minutes. Lift the eggs out of the water with a skimmer and let them drip off on kitchen paper
Wash the chives, shake dry and cut into rings. Arrange the spinach on plates, place one egg on each. Sprinkle the rest of the cheese and chives on top