Cumberland sauce is a fruit-based sauce, usually used on non white meats such as venison, ham, and lamb. Created sometime in the late 19th century, the sauce was named for the Duke of Cumberland, who had ties to Hanover, Germany, where the sauce was invented. It is a more complex version of a simple redcurrant sauce.
Despite its German origin, today the sauce is ubiquitous in the Cumbria region of England and is thought of as a thoroughly British condiment.Although variations exist, common ingredients include red currants
or cowberries, port or wine, mustard, pepper
, and vinegar