Wash and peel the asparagus and cut off the woody ends. Cut the asparagus into bite-sized pieces and cook them in boiling salted water, with a little sugar and lemon juice, at medium heat for about 15 minutes.
For the sauce, measure 200 ml asparagus stock. Stir in sauce powder, bring to the boil. Beat the fat in small pieces over low heat. Season with cayenne pepper, pickled peppercorns and orange juice.
Drain the asparagus and mix with the sauce. Garnish as desired with chervil leaves and orange spiral.