Cut the ham into fine strips. Whisk eggs and milk. Season with salt and nutmeg. Add ham. Pour egg milk into a greased fireproof mould (approx. 1/4 l capacity). Close the mould with aluminium foil. Leave to stand in a low-boiling water bath for about 40 minutes
Clean, wash and slice the mushrooms very thinly
Heat the fat in a saucepan. Sauté the mushrooms in it while turning them. Season with salt and pepper. Add 3/4 l water and bring to the boil. Stir in the yeast stock. Cover and simmer for about 3 minutes
Wash the chives and cut into small rolls. Remove the egg sting from the edge with a knife, turn it over and cut it into cubes or rhombs. Season to taste broth. Add the egg and chives