Svampesauce
Mushroom sauce is a white or brown sauce prepared using mushrooms as its primary ingredient. It can be prepared in different styles using various ingredients, and is used to top a variety of foods. In cooking, mushroom sauce is sauce with mushrooms as the primary ingredient. Often cream-based, it can be served with veal, chicken and poultry, pasta, and other foods such as vegetables. Some sources also suggest pairing mushroom sauce with fish. It is made with mushrooms, butter, cream or olive oil, white wine and pepper with a wide variety of variations possible with additional ingredients such as shallot, garlic, lemon juice, flour (to thicken the sauce), chicken stock, saffron, basil, parsley, or other herbs. It is a variety of allemande sauce.
Source: Wikipedia