Wash the meat and dab dry. Rub with salt and pepper. Brush with mustard and place on a fat pan of the oven. Bake in the preheated oven (electric cooker: 200 °C/ gas: level 3) for approx. 25 minutes.
Wash the potatoes and cook in boiling water for about 20 minutes. Peel the asparagus and cut off the woody ends. Boil up plenty of water with a little salt, sugar, lemon juice and butter. Add the asparagus and cook in lightly boiling water for 15-20 minutes.
Drain the potatoes, rinse with cold water and peel. Wash the chives, dab dry and cut into small rolls. Heat oil. Briefly toss potatoes, chives and caraway seeds in the oil. Season with salt.
Drain the asparagus and let it drain. In the meantime, melt butter for the sauce and let it cool down a little. Beat the egg yolks and white wine in a bain-marie until fluffy. Slowly beat in the liquid butter.
Season the sauce with salt, pepper, lemon juice and Worcester sauce. Cut the meat open and arrange on a plate with the asparagus and potatoes. Add the sauce.