Beef Wellington is a dish consisting of a whole filet of beef that is coated with a pâté and duxelles, a combination of minced mushrooms, herbs, and shallots. The concoction is then wrapped in puff pastry and baked in the oven.
Traditionally, slices of beef Wellington are accompanied by madeira sauce. It is believed that the dish was named after Arthur Wellesley, the first Duke of Wellington, who defeated Napoleon at Waterloo. However, the dish was not known in Wellesley's lifetime, so the origins of beef Wellington still remain murky, and some believe that the dish got its name because it resembles a Wellington boot.