Wash the asparagus and cut off the woody ends. Cut the asparagus into pieces. Bring the vegetable stock to a boil, simmer the asparagus pieces for about 15 minutes. Peel ginger, chop finely and add to the asparagus.
Asparagus with broth very finely puree, with cream and lemon juice refine, with salt, pepper and sugar season.
Remove the crusts from the bread and cut into small cubes. Heat the fat in a pan, fry the bread cubes in it until crispy, then let them drip off on kitchen paper. Wash the chervil, shake dry and pluck the leaves from the stems.
Warm the milk and froth it up.
Pour asparagus soup into glasses, cover with milk foam and garnish with chervil and croutons.