This recipe is a specialty in the city of Düsseldorf.

Serves 4 4 sirloin steaks, around 180 grams each 300 large Spanish onions 100 grams coarse mustard 500 grams mixed garden vegetables 500 grams waxy potatoes 400 grams butter 2 egg yolks 50 ml white wine chives lemon Worcester sauce pepper, salt, caraway seeds, sugar oil Hollandaise Sauce Clarify 350 gram butter over low heat Combine two egg yolks and white wine over low heat and whisk until creamy Gradually add the butter and continue to stir.