Wring out the washed and well drained spinach and cut into tender strips.
Fry minced onion and chopped garlic in butter until light yellow. Add spinach, season with salt and nutmeg. Steam for about 3 minutes until soft.
Later, pour in the beef broth and let it bubble up.
Mix the milk with the egg yolk and the crème fraîche and stir into the soup. After that, do not make the soup.
Tip: Did you know that one bowl of spinach covers almost all the need for manganese and fiber?