Wash the asparagus. Peel white asparagus. Cut the woody ends off the asparagus spears. Season plenty of water with salt and sugar. Cook the white asparagus in boiling water for 12-15 minutes.
After 7-8 minutes add green asparagus. In the meantime dab ##Schnitzel## dry and beat flat between 2 layers of foil. Season with salt and pepper. Heat clarified butter in a large pan.
Fry the cutlets in it in 2 portions while turning for about 3 minutes. 1 minute before the end of the cooking time, brush each cutlet with 1/2 tsp. mustard. Take out, keep warm. Drain the asparagus and catch the stock.
Measure out 300 ml. Keep asparagus warm. Melt the fat in a small pot. Add flour and sweat briefly. Add milk and stock. Bring to the boil while stirring and simmer for 3-4 minutes. Wash ##Estragon##, dab dry and chop finely, except for some garnish.
Add tarragon to the sauce and season to taste with salt, pepper and ##muscat##. Arrange asparagus with tarragon sauce on plates. Garnish with tarragon. Add schnitzel.