Peel and chop onion and garlic. Clean and wash the broccoli and cut into florets. Peel and chop thick stems.
Heat 2 tablespoons of fat. Sauté onion and garlic in it. Briefly sauté the broccoli. Pour in a good 3/4 l water, bring to the boil and stir in broth. Cover and cook for about 15 minutes.
Dice the toast. Heat 2 tablespoons of fat in a frying pan. Roast the bread cubes in it while turning them golden brown. Season with salt and take out. Wash parsley and cut into fine strips.
Puree the broccoli in the broth with a hand blender. Stir in crème fraiche. Season soup with salt, pepper and nutmeg. Serve with parsley and croutons.