Onion sauce Onion sauce Onion sauce is a culinary sauce that uses onion as its primary ingredient. Some onion sauces may use several types of onions in their preparation. Some onion sauces are brown in color, while others are white. Many various ingredients may be used in preparations of onion sauce, such as cream, milk, butter, chicken broth, wine, port wine, beer, lemon juice, flour, salt, pepper, cayenne pepper, nutmeg, dry mustard, sage and other herbs, mushroom ketchup, bread crumbs, bacon and others. Preparation generally involves slicing or dicing and then cooking the onions, adding additional ingredients, and then continuing to cook
Green sauce eggs or roast beef brisket. It may also be served with cooked fish or roast beef, or as a side dish to barbecue. A local schnitzel specialty, called Frankfurter Schnitzel, is always served with green sauce, along with apple cider (Apfelwein) as a traditional accompanying drink. Green sauce was supposedly Goethe's favourite condiment; a legend that his mother invented it is likely apocryphal. The local importance of the dish is shown by the abundance of green sauce at local markets and by the Green Sauce Monument installed in Frankfurt-Oberrad in 2007. The latter consists of seven small greenhouses with the