Peel and finely chop the onion. Clean and wash the broccoli and cut into florets. Peel broccoli stem and cut into slices. Heat the fat in a pot and fry the onion in it. Add broccoli and steam briefly.
Season with salt, pepper and nutmeg. Deglaze with broth and bring to the boil. Cook over medium heat for 10-15 minutes. Remove from the heat and use a skimmer to remove a few broccoli florets from the soup and set aside. Puree the soup with a blender. Add the broccoli florets and cream and stir in. Bring to the boil again. Grate the cheese finely and add it to the soup, except for a little bit for sprinkling, and melt in it while stirring. Season to taste again.
Add the broccoli florets and cream and stir in. Bring to the boil again. Grate the cheese finely and add it to the soup, except for a little bit for sprinkling, and melt in it while stirring. Season to taste again. Fry bacon in a pan without fat until crispy and dice finely. Arrange soup on plates and serve sprinkled with bacon and cheese