Peel and finely chop 1 onion. Clean and wash the broccoli and cut into florets. Peel and chop the broccoli stems
Heat 1 tablespoon of fat. Fry the onion until transparent. Deglaze with 3/4 l water, bring to the boil and stir in stock. Cover the broccoli and cook for 8-10 minutes
Bring milk, 1 tablespoon of fat and 1 pinch of salt to the boil. Add flour at once. Stir with a wooden spoon until the mixture separates from the bottom of the pot. Take the pot off the stove. Stir in egg and ham one after the other. Season the mixture
Using 2 teaspoons dipped in cold water, cut off 12 cams. Leave to stand in boiling salt water for about 10 minutes
Finely mash the broccoli in the broth. Stir in sour cream. Season soup with salt, pepper and nutmeg. Arrange ham noodles in the soup and garnish with chives