Boil up the asparagus stock. Cut the asparagus into pieces and cook for about 8 minutes. Take out
Sweat flour in hot fat. Deglaze with asparagus stock and milk while stirring. Bring to the boil and add about
Simmer for 5 minutes. Add the asparagus. Season with salt, pepper, sugar, Worcester sauce and lemon
Whisk some hot soup with egg yolk and stir into the soup (do not let it boil any more). Wash the chervil, remove the leaves (chop the parsley). Rinse shrimps briefly if necessary and dab dry. Sprinkle both over the soup