Clean and wash broccoli. Cut the stems into thin slices. Cut the florets into smaller pieces. Peel and finely chop the onions. Heat the fat in a pot.
Sauté the broccoli in it. Season with salt and pepper. Deglaze with 800 ml water, bring to the boil. Cook for about 10 minutes with the lid closed. Take some florets and stem slices aside. Puree the rest in the stock. Add sauce thickener, bring to the boil again and season. Refine with sour cream. Serve with retained ingredients.
Take some florets and stem slices aside. Puree the rest in the stock. Add sauce thickener, bring to the boil again and season. Refine with sour cream. Serve with retained ingredients. Serve with toast sticks