Peel the asparagus spears and cut off the woody ends. Wash all asparagus skins and ends and put them in a pot with 800 ml cold water. Season with salt and sugar. Bring to the boil, cover and let it simmer at medium heat for about 15 minutes.
In the meantime, wash the meat and cut into strips. Heat oil in a small, coated pan. Fry the meat in it for 3-4 minutes until brown all around, season with salt and pepper. Halve the asparagus spears lengthwise and cut into pieces.
Remove 150 ml of asparagus water, put it with asparagus pieces into a small pot, cover and cook for 6-7 minutes until al dente. Pour the asparagus peelings onto a sieve and collect the stock. Melt fat in a pot, dust with flour and sauté.
Add asparagus stock and cream, bring to the boil and simmer for about 5 minutes. Season to taste with salt, pepper and sugar. Add meat and asparagus pieces and warm up. Cut cress from the bed. Arrange soup, sprinkle with pink berries and cress.