F’rell am rèisleck is a traditional fish specialty hailing from Luxembourg, consisting of freshwater trout smothered in a creamy Riesling wine sauce. After the fish has been fried in melted butter, it is covered with a mixture of Riesling wine, crème fraiche, shallots, and spices and herbs such as chervil, tarragon, chives, parsley, paprika, salt, and pepper, before it is baked.